Best Hot Tubs for Hydrotherapy in 2026: 9 Picks Ranked by Specs
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Finding the best hot tubs for hydrotherapy requires matching jet counts and pump specs to your seating needs. We compared 9 models using only the specifications published on their listings. The Aqualife Current 4-5 Person Spa with LED Light leads this list because its 19 jets and two-speed pump deliver full-body water circulation for up to five adults. This guide helps you decide which unit fits your space and power requirements based on practical data.
Quick picks
The best fit for you
- You need full-body hydrotherapy for up to five adults Aqualife Current 4-5 Person Spa with LED Light It features 19 jets and a two-speed pump for standard 120V setup.
- You want spacious multi-user hydrotherapy with digital controls Hudson Bay 6-Person 29-Jet Acrylic Hot Tub This 6-person acrylic tub includes 29 therapy jets and Balboa digital operation.
- You seek high jet concentration for small groups Hudson Bay 3-Person 31-Jet Acrylic Spa It packs 31 therapy jets into a compact 3-person acrylic shell.
- You want compact four-person backyard hydrotherapy Hudson Bay 4-Person Acrylic Hot Tub with 15 Jets The 60 by 70-inch acrylic shell offers 15 therapy jets for four people.
- You need six-person hydrotherapy on standard 110V power Hudson Bay Spas 6-Person Acrylic Lounger Hot Tub It provides 19 jets with simple 110V plug-and-play electrical requirements.
Our 9 picks
Aqualife Current 4-5 Person Spa with LED Light
Best for: Standard-outlet hydrotherapy for up to five adults
- Use
- Hydrotherapy, Outdoor (what this guide is about)
- Seating Capacity
- 4-5 adult
- Jet Count
- 19
- Jet Type
- Stainless steel jets
- Dimensions
- 75.5 x 75.5 x 32 inches
- Features
- LED Lighting, Pool Cover
View on Amazon: Aqualife Current 4-5 Person Spa with LED Light
This outdoor hot tub provides hydrotherapy seating for four to five adults across a 75.5 by 75.5 by 32-inch frame. It features 19 stainless steel jets, including a cyclonic whirlpool jet, driven by a two-speed, two peak horsepower pump. Because it connects to a standard 120-volt, 15-amp outlet with an included GFCI cord, you do not need dedicated electrical wiring. It suits anyone wanting multijet hydrotherapy without custom electrical work.
Pros
- Plugs into a standard 120V/15A outlet with included GFCI cord
- 19 stainless steel jets include a dedicated whirlpool jet
- Two-speed, 2 peak HP energy-efficient pump
- Includes pool cover and underwater LED lighting
Cons
- Total of 19 jets provides fewer massage points than higher-count models
- Dry weight of 400 pounds requires firm ground support
Good fit if
- You want a hot tub that runs on a standard 120V/15A household outlet.
- You need contour seating for up to five adults.
- You want stainless steel hydrotherapy jets with a cyclonic whirlpool feature.
Skip if
- You want more than 19 hydrotherapy jets.
- You need seating capacity for six or more adults.
Verdict: Aqualife Current 5-Person 120V Hot Tub balances simple 120V setup with 19 hydrotherapy jets and a two-speed pump. It delivers full-body water circulation for up to five adults without requiring custom electrical installation.
Hudson Bay 6-Person 29-Jet Acrylic Hot Tub
Best for: six-person backyard hydrotherapy with digital controls
- Use
- Backyard, Relaxation, Hydrotherapy (what this guide is about)
- Seating Capacity
- 6-person
- Jet Count
- 29
- Jet Type
- Therapy jets
- Material
- Acrylic
- Dimensions
- 80 x 80 x 35 inches
This 6-person spa gives you an 80-by-80-inch footprint with 29 dedicated therapy jets for targeted hydrotherapy. Its sterling acrylic shell features multi-layered fiberglass reinforcement, paired with comfort cushion headrests and an intuitive Balboa digital control panel for managing pump cycles and water temperature. If you need dedicated multi-user seating with built-in underwater mood lighting, a backlit waterfall, and an included locking cover, this rigid setup fits your backyard.
Pros
- 29 therapy jets managed by digital Balboa controls
- Fiberglass-reinforced acrylic shell with mocha cabinets
- Backlit waterfall and multi-color underwater mood lighting
- Includes locking deluxe insulated cover
Cons
- Dry weight of 655 pounds requires a rigid, high-capacity base
- Large 80 by 80-inch footprint demands substantial patio space
Good fit if
- You need hydrotherapy seating for up to six people.
- You want standard Balboa digital controls for heat and jet adjustments.
- You prefer a fiberglass-reinforced acrylic structure with an included locking cover.
Skip if
- You need a lightweight portable spa that you can move easily.
- You have a tight patio space measuring under 80 inches square.
Verdict: Hudson Bay 6-Person Acrylic Hot Tub with 29 Jets delivers spacious multi-user hydrotherapy through 29 jets and reliable Balboa digital operation. Its reinforced acrylic shell and included locking cover make it a dependable permanent installation.
Hudson Bay 3-Person 31-Jet Acrylic Spa
Best for: small groups seeking high jet concentration
- Use
- Backyard, Relaxation, Hydrotherapy (what this guide is about)
- Seating Capacity
- 3-person
- Jet Count
- 31
- Jet Type
- Therapy jets
- Material
- Acrylic
- Dimensions
- 72 x 72 x 35 inches
This Hudson Bay acrylic spa seats up to three people and features 31 dedicated therapy jets for targeted hydrotherapy. Measuring 72 by 72 by 35 inches, it runs via an integrated Balboa digital control panel to regulate water flow and temperature. The setup also includes cushioned headrests and a built-in backlit waterfall. It suits you if you want a compact three-seat layout with a high jet-to-seat ratio for focused body recovery.
Pros
- 31 therapy jets across 3 seating positions
- Balboa digital control panel for temperature and jet adjustments
- Multi-layered fiberglass-reinforced acrylic shell
- Includes locking deluxe cover and cushioned headrests
Cons
- Seating capacity limited to 3 people
- Dry weight of 645 pounds requires a reinforced surface and moving assistance
Good fit if
- You want a compact 72-by-72-inch footprint that accommodates up to three people.
- You prefer an average of ten therapy jets per seat.
- You want digital Balboa controls and an included locking cover.
Skip if
- You need seating for four or more adults.
- You need a lightweight spa that can be moved easily.
Verdict: Hudson Bay 3-Person Acrylic Spa with 31 Therapy Jets delivers strong targeted hydrotherapy with 31 jets packed into a compact three-seat layout. It gives you dependable Balboa digital controls and a durable acrylic build without demanding a large footprint.
Hudson Bay 4-Person Acrylic Hot Tub with 15 Jets
Best for: compact four-person backyard hydrotherapy
- Use
- Backyard, Relaxation, Hydrotherapy (what this guide is about)
- Seating Capacity
- 4-person
- Jet Count
- 15
- Jet Type
- Therapy jets
- Material
- Acrylic
- Dimensions
- 60 x 70 x 32 inches
View on Amazon: Hudson Bay 4-Person Acrylic Hot Tub with 15 Jets
This spa provides dedicated hydrotherapy in a compact footprint. It measures 60 by 70 inches with a 32-inch depth and seats up to four people. Inside the white acrylic shell, 15 therapy jets deliver targeted water flow, managed directly through built-in digital controls. You get a rigid acrylic build designed for backyard relaxation. It suits you if you want hydrotherapy seating for four without taking up excess patio space.
Pros
- 15 dedicated therapy jets
- Solid acrylic construction
- Digital control panel
- Space-saving 60 by 70 by 32-inch dimensions
Cons
- 15 jets provide fewer massage outlets than higher-count models on the list
- Four-person capacity limits group seating compared to six-person spas
Good fit if
- You need a compact acrylic spa measuring 60 by 70 inches.
- You want hydrotherapy seating for up to four people.
- You prefer simple operation through digital controls.
Skip if
- You require more than 15 therapy jets for full-body hydrotherapy coverage.
- You host larger groups and need seating for five or six adults.
Verdict: Hudson Bay 4-Person 15-Jet Hot Tub combines a compact 60 by 70-inch acrylic shell with digital controls for targeted four-person hydrotherapy. It offers a solid balance of essential therapy jets and space-saving dimensions.
Hudson Bay Spas 6-Person Acrylic Lounger Hot Tub
Best for: six-person hydrotherapy on standard 110V power
- Use
- Backyard, Relaxation, Hydrotherapy (what this guide is about)
- Seating Capacity
- 6-person
- Jet Count
- 19
- Jet Type
- Therapy jets
- Material
- Acrylic
- Dimensions
- 76 x 76 x 35 inches
View on Amazon: Hudson Bay Spas 6-Person Acrylic Lounger Hot Tub
This 76-by-76-inch acrylic hot tub provides hydrotherapy seating for up to six people using 19 dedicated therapy jets. You get a dedicated lounger seat with targeted neck and shoulder massage points, managed through a Balboa VL200 digital control panel. It runs on a standard 110-volt electrical connection with an included GFCI cord. This setup suits you if you want group seating and dedicated lounger hydrotherapy without needing 230-volt wiring.
Pros
- Standard 110V power operation with included 15A GFCI cord
- Dedicated lounger seat with targeted neck and shoulder jets
- Balboa VL200 digital control panel for temperature and jet adjustments
- Multi-colored underwater mood lighting and built-in backlit waterfall
Cons
- 19 jets across six seats provides a modest jet density per person
- Requires a dedicated 20A breaker rather than a standard 15A circuit
- Heavy dry weight of 645 pounds requires solid structural support
Good fit if
- You want a six-person acrylic tub that operates on standard 110V power.
- You prefer full-body reclining hydrotherapy via an integrated lounger seat.
- You want digital water temperature controls paired with targeted neck and shoulder jets.
Skip if
- You want a high jet-to-seat count across all six seating positions.
- You lack a dedicated 20A breaker for your 110V outdoor power connection.
Verdict: Hudson Bay 6-Person Lounger Spa with 19 Jets delivers full-body hydrotherapy with simple 110V operation and targeted lounger seating. It balances multi-person capacity with accessible plug-and-play electrical requirements.
Hudson Bay 6-Person 34-Jet Acrylic Spa
Best for: six-person backyard hydrotherapy with digital controls
- Use
- Backyard, Relaxation, Hydrotherapy (what this guide is about)
- Seating Capacity
- 6-person
- Jet Count
- 34
- Jet Type
- Therapy jets
- Material
- Acrylic
- Dimensions
- 80 x 80 x 35 inches
This Hudson Bay 6-person acrylic spa delivers hydrotherapy using 34 dedicated therapy jets. You manage water temperature and jet pressure directly through a built-in Balboa digital control panel. It features an 80 by 80 by 35-inch footprint with cushioned headrests, a backlit waterfall, and underwater mood lighting. It suits you if you want group seating with targeted jet coverage and fiberglass shell reinforcement for your backyard.
Pros
- 34 therapy jets for hydrotherapy coverage
- Balboa digital control panel for temperature and jet operation
- Multi-layered fiberglass-reinforced acrylic shell
- Backlit waterfall and multi-colored underwater lighting
- Includes locking deluxe insulated cover
Cons
- Dry weight of 655 pounds requires heavy-duty delivery handling
- Square 80 by 80-inch dimensions demand a dedicated patio footprint
Good fit if
- You need seating space for up to 6 people.
- You want 34 therapy jets regulated via Balboa digital controls.
- You want built-in headrests, waterfall, and mood lighting features.
Skip if
- You need a compact spa smaller than 80 by 80 inches.
- You prefer a lighter tub that weighs under 655 pounds empty.
Verdict: Hudson Bay 6-Person 34-Jet Hot Tub combines multi-layered fiberglass acrylic construction with 34 therapy jets and Balboa digital controls. It offers practical hydrotherapy seating for up to six people in backyard settings.
Home and Garden Spas 5-Person 51-Jet Hot Tub
Best for: high-density 5-person hydrotherapy with lounger seating
- Use
- Backyard, Relaxation, Hydrotherapy, Garden (what this guide is about)
- Seating Capacity
- 5-person
- Jet Count
- 51
- Jet Type
- Therapy jets
- Material
- Acrylic
- Dimensions
- 80 x 80 x 34 inches
View on Amazon: Home and Garden Spas 5-Person 51-Jet Hot Tub
This 5-person acrylic spa provides targeted full-body hydrotherapy using 51 stainless steel therapy jets and a dedicated lounger seat. Measuring 80 by 80 by 34 inches, it features a digital Balboa control panel to adjust water temperature and jet action. With its multi-colored underwater lighting and integrated waterfall, it suits you if you want high jet density and reclined full-body seating for family or group hydrotherapy sessions.
Pros
- 51 stainless steel therapy jets for targeted massage
- Dedicated lounger seat paired with a 5-person seating layout
- Digital Balboa control panel for temperature and jet settings
- Protective ABS bottom with fiberglass-reinforced acrylic shell
Cons
- Dry weight of 750 pounds requires substantial moving effort
- Standard foam insulation rather than high-density full foam
Good fit if
- You want 51 dedicated hydrotherapy jets across open seats and a lounger.
- You need a 5-person acrylic spa managed by a Balboa digital interface.
- You prefer an ABS-protected base for outdoor surface placement.
Skip if
- You need a lightweight spa that weighs under 750 pounds empty.
- You have yard space smaller than 80 by 80 inches.
- You require seating capacity for six or more adults.
Verdict: Home and Garden 5-Person 51-Jet Acrylic Hot Tub delivers substantial hydrotherapy power through 51 targeted jets, a dedicated reclined lounger, and dependable Balboa controls. It provides a spacious, rigid acrylic platform for multi-person relaxation and targeted hydromassage.
Aqualife Current 4-Person Hot Tub
Best for: plug-and-play hydrotherapy on standard 120V power
- Use
- Hydrotherapy, Outdoor (what this guide is about)
- Seating Capacity
- 3-4
- Jet Count
- 14
- Jet Type
- Hydrotherapy jets
- Dimensions
- 71 x 61 x 29.5 inches
- Features
- LED Lighting, Pool Cover
The Aqualife Current is an outdoor spa designed for simple plug-and-play hydrotherapy. It runs on a standard 120V/15A outlet with an included GFCI cord, avoiding dedicated electrical rewiring. Inside, you get lounger seating for three to four adults paired with 14 hydrotherapy jets and underwater LED lighting. Measuring 71 by 61 by 29.5 inches, this model suits you if you want hydrotherapy in a compact footprint.
Pros
- Plugs into a standard 120V/15A outlet with included GFCI cord
- Equipped with 14 hydrotherapy jets and lounger-style seating
- Includes built-in underwater LED lighting and a cover
- Weighs 300 pounds dry for manageable positioning
Cons
- Features only 14 hydrotherapy jets across the tub
- Capacity limited to 3 to 4 adults
Good fit if
- You have a standard 120V/15A outdoor receptacle and want plug-and-play installation.
- You want lounger-style hydrotherapy seating for up to 4 adults in a 71 by 61-inch frame.
Skip if
- You need a higher jet count than 14 jets for deep hydrotherapy coverage.
- You plan to seat groups larger than 4 adults.
Verdict: Aqualife Current 4-Person 14-Jet Hot Tub delivers convenient plug-and-play hydrotherapy via a standard 120V outlet for smaller outdoor spaces. Its 14 jets provide targeted massage without requiring 240V hardwired electrical upgrades.
Home and Garden Spas 3-Person 38-Jet Hot Tub
Best for: small households wanting high jet-to-seat ratios
- Use
- Backyard, Relaxation, Hydrotherapy, Garden (what this guide is about)
- Seating Capacity
- 3-Person
- Jet Count
- 38
- Jet Type
- Therapy jets
- Material
- Acrylic, fiberglass
- Dimensions
- 82" x 60" x 33"
View on Amazon: Home and Garden Spas 3-Person 38-Jet Hot Tub
This 3-person spa gives you 38 therapy jets packed into an 82 by 60 inch acrylic frame. It is built with multi-layered fiberglass reinforcement, an ABS bottom for surface protection, and an integrated Balboa digital control panel. If you want concentrated hydrotherapy for up to three people without the larger footprint of a six-person tub, this setup delivers substantial jet coverage paired with a backlit waterfall and multi-colored lighting.
Pros
- 38 therapy jets powered via digital Balboa controls
- Multi-layered fiberglass reinforcement with an ABS bottom
- Includes a backlit waterfall and multi-colored underwater mood light
- Comes with a locking deluxe safety cover
Cons
- Maximum capacity limited to 3 people
- Rectangular 82 by 60 inch footprint requires dedicated clearance
Good fit if
- You want a high ratio of therapy jets across 3 seating positions.
- You prefer Balboa digital controls for operating jets and water temperature.
Skip if
- You need seating capacity for more than 3 people.
- You do not have space for an 82-inch long acrylic frame.
Verdict: Home and Garden 3-Person 38-Jet Acrylic Hot Tub delivers concentrated hydrotherapy with 38 therapy jets and an integrated Balboa digital control panel. It fits smaller groups that prioritize high jet counts over large seating capacities.
Specifications side by side
| Spec | Aqualife Current 4-5 Person Spa with LED Light | Hudson Bay 6-Person 29-Jet Acrylic Hot Tub | Hudson Bay 3-Person 31-Jet Acrylic Spa | Hudson Bay 4-Person Acrylic Hot Tub with 15 Jets | Hudson Bay Spas 6-Person Acrylic Lounger Hot Tub | Hudson Bay 6-Person 34-Jet Acrylic Spa | Home and Garden Spas 5-Person 51-Jet Hot Tub | Aqualife Current 4-Person Hot Tub | Home and Garden Spas 3-Person 38-Jet Hot Tub |
|---|---|---|---|---|---|---|---|---|---|
| Seating Capacity | 4-5 adult | 6-person | 3-person | 4-person | 6-person | 6-person | 5-person | 3-4 | 3-Person |
| Jet Count | 19 | 29 | 31 | 15 | 19 | 34 | 51 | 14 | 38 |
| Jet Type | Stainless steel jets | Therapy jets | Therapy jets | Therapy jets | Therapy jets | Therapy jets | Therapy jets | Hydrotherapy jets | Therapy jets |
| Material | not specified | Acrylic | Acrylic | Acrylic | Acrylic | Acrylic | Acrylic | not specified | Acrylic, fiberglass |
| Dimensions | 75.5 x 75.5 x 32 inches | 80 x 80 x 35 inches | 72 x 72 x 35 inches | 60 x 70 x 32 inches | 76 x 76 x 35 inches | 80 x 80 x 35 inches | 80 x 80 x 34 inches | 71 x 61 x 29.5 inches | 82" x 60" x 33" |
| Control Type | not specified | Balboa control panel | Balboa control panel | Digital Controls | Balboa VL200 Control Panel | Balboa control panel | Digital Balboa control panel | not specified | Balboa control panel |
| Features | LED Lighting, Pool Cover | not specified | not specified | not specified | not specified | not specified | not specified | LED Lighting, Pool Cover | not specified |
| Use | Hydrotherapy, Outdoor | Backyard, Relaxation, Hydrotherapy | Backyard, Relaxation, Hydrotherapy | Backyard, Relaxation, Hydrotherapy | Backyard, Relaxation, Hydrotherapy | Backyard, Relaxation, Hydrotherapy | Backyard, Relaxation, Hydrotherapy, Garden | Hydrotherapy, Outdoor | Backyard, Relaxation, Hydrotherapy, Garden |
| Weight | 400 pounds | 655 pounds | 645 pounds | not specified | 645 pounds | 655 pounds | 750 pounds | 300 pounds | not specified |
| Color | Granite | Sterling | Sterling | White | White | Sterling | Sterling or White | Gray Granite | Sterling or White |
| Model | SS1860190400 | HB29 | HB31 | HB15 | HB19 | HB34 | HG51 | SS1243140400 | HG38 |
Is Hydrotherapy Worth It for Your Needs?
Hydrotherapy uses targeted water jets to massage muscles and improve circulation. You get this feature through therapy jets controlled by digital panels or two-speed pumps. Higher jet counts, like 51 jets in a five-person tub, provide concentrated massage for small groups. Lower counts, such as 19 jets for five adults, offer broader circulation. Acrylic shells with lounger seating enhance the experience by allowing you to recline while jets target specific areas. This setup supports relaxation and physical relief in your backyard.
Worth it if
- You want targeted muscle relief through high jet-to-seat ratios
- You prefer digital controls for precise pressure adjustment
- You need lounger seating for reclined hydrotherapy sessions
Skip it if
- You only need simple bubbling for casual soaking
- You prefer minimal maintenance and fewer mechanical parts
- You have limited space for larger acrylic shells
If you prefer an indoor soaking basin without massage jets, compare the best clawfoot tub bathtubs by basin dimensions.
How We Selected These Spas
We identified these models by scanning Amazon listings for the Hydrotherapy use case. We only included products where the listing explicitly stated this feature in the title or bullet points. This ensures every pick matches your specific need for targeted water massage. We did not handle these units or test them personally. All details come from the published specifications on the product pages.
The list is ordered by availability first. Next, we ranked them by overall rating weighted by review count. Finally, we considered how well the specs meet our criteria. We selected one size or variant from each product family to keep the guide concise. Prices and stock levels change daily and are not part of this text. We focus strictly on the technical data provided by the manufacturers.
How to choose the right one
-
Match jets to seats
Jet density determines the intensity of your massage. A high ratio, such as 38 jets for three seats in the Home and Garden HG38, delivers concentrated pressure for small groups. Lower ratios, like 19 jets for five seats in the Aqualife Current, provide broader circulation for larger parties. Select the density that matches your preference for targeted therapy or general relaxation.
-
Check electrical requirements
Power compatibility dictates your installation options. The Aqualife Current models use standard 120V outlets, allowing for plug-and-play setup without custom wiring. Other models, like the Hudson Bay HB29, typically require 240V hardwiring. Verify your home’s electrical capacity before purchasing. Choosing a 120V model simplifies placement, while 240V units often support higher-performance pumps and more jets.
-
Assess footprint dimensions
Measure your outdoor space carefully before buying. The Hudson Bay HB15 offers a compact 60 by 70-inch footprint, fitting smaller yards. Larger tubs, such as the Aqualife Current at 75.5 by 75.5 inches, need more room. Consider the height as well, which ranges from 29.5 to 35 inches. Ensure you have adequate clearance for access and maintenance around the unit.
-
Choose shell material
The shell material affects durability and maintenance. Most premium picks here use acrylic shells, which provide a rigid, non-porous surface that resists staining and is easy to clean. The Aqualife Current models use a different construction style but remain durable. Acrylic tubs like the Hudson Bay series generally offer a smoother finish and better structural integrity for permanent installations.
-
Evaluate control systems
Digital controls offer precise management of temperature and jet functions. Models from Hudson Bay and Home and Garden Spas feature Balboa digital panels for reliable operation. The Aqualife Current uses a simpler two-speed pump system. Digital interfaces allow you to adjust settings easily, while basic pump systems focus on straightforward on/off functionality for those who prefer simplicity.
Frequently asked questions
What is the best hot tub for hydrotherapy in 2026?
The Aqualife Current 4-5 Person Spa with LED Light ranks first. It features 19 hydrotherapy jets and a two-speed pump for full-body circulation. The 120V setup allows standard electrical installation without custom wiring. Its 75.5-inch square shell seats up to five adults comfortably.
Which hot tub has the most jets for hydrotherapy?
The Home and Garden HG51 offers 51 therapy jets. This high count is packed into a five-person acrylic shell. It includes a dedicated reclined lounger for targeted massage. The Balboa digital controls manage the intense hydrotherapy output for small groups seeking concentrated pressure.
Do I need a 240V outlet for hydrotherapy spas?
Not necessarily. The Aqualife Current models operate on standard 120V power. The 4-person version plugs into a regular outlet for plug-and-play use. The 5-person model also uses 120V. Other models like the Hudson Bay series typically require 240V hardwired connections for higher power.
What is the smallest hot tub for hydrotherapy?
The Aqualife Current 4-Person Hot Tub is the most compact option. It measures 61 inches wide by 71 inches long. It still provides 14 therapy jets for targeted massage. Its 300-pound weight makes it lighter and easier to place in smaller outdoor spaces.
Are acrylic shells better for hydrotherapy?
Acrylic shells are common in hydrotherapy spas for durability. Most listed models, including Hudson Bay and Home and Garden, use acrylic. This material supports heavy jet systems and maintains structural integrity. It also resists cracking under the pressure of high-density jet layouts.
How many jets do I need for hydrotherapy?
Jet count should match your seating capacity. The Home and Garden HG38 has 38 jets for three seats, offering high density. The Aqualife 5-person model has 19 jets for broader circulation. Choose higher ratios for concentrated massage or lower ratios for full-body water movement.
Which hot tub is best for six people?
The Hudson Bay HB29 is a top choice for six people. It includes 29 therapy jets and digital controls. The HB34 offers 34 jets for stronger pressure. Both feature reinforced acrylic shells. They provide spacious seating for multi-user hydrotherapy sessions in backyard settings.