Intex PureSpa 6-Person Hot Tub vs Intex PureSpa 4-Person Octagonal Bubble: Spec Comparison
As an Amazon Associate we earn from qualifying purchases. Links on this page are affiliate links.
When you compare the intex purespa 6 person hot tub vs purespa 4 person octagonal bubble, you see two distinct options from Intex. Both models use Fiber-Tech construction and heated air bubble technology for comfort. They also share energy-efficient covers and hard water treatment systems. The main difference lies in their shape and capacity. One offers a larger, square footprint for six people, while the other provides an octagonal design for four. You need to decide which size and layout fit your space best.
Key differences
| Aspect | Intex PureSpa 6-Person Hot Tub with Insulated Cover | Intex PureSpa 4-Person Octagonal Bubble Spa |
|---|---|---|
| Shape | Square | Octagonal |
| Seating Capacity | 6 person | 4 person |
| Dimensions | 85" x 85" x 28" | 71" x 71" x 28" |
| Jet Count | not listed | 120 |
| Color | Blue | Gray |
Which one should you choose?
Choose Intex PureSpa 6-Person Hot Tub with Insulated Cover if
- You need seating for up to six people.
- You have a larger outdoor area with at least 85 inches of clear space.
- You prefer a square layout for your spa.
Choose Intex PureSpa 4-Person Octagonal Bubble Spa if
- You want a compact spa for four people.
- You are limited to a smaller footprint of 71 inches.
- You prefer an octagonal shape for your patio.
Verdict: Choose the six-person model if you need more seating and have the space for a larger square tub. The four-person octagonal option is better for smaller areas where space is limited. Both provide similar heating and insulation features.
Shape, Size, and Seating Comparison
Shape and Layout
The Intex PureSpa 4-Person Octagonal Bubble Spa features an octagonal design with outer dimensions of 71 inches by 71 inches and inner dimensions of 51 inches by 51 inches. This shape creates distinct corners that can accommodate four people comfortably. In contrast, the Intex PureSpa 6-Person Hot Tub with Insulated Cover uses a square footprint measuring 85 inches by 85 inches. The larger square layout offers more continuous seating space along the walls. The octagonal shape of the four-person model provides a unique aesthetic and efficient use of corner space, while the six-person model prioritizes maximum capacity with a broader, rectangular-friendly square shape.
Seating Capacity
Capacity is the most significant difference between these two spas. The Intex PureSpa 6-Person Hot Tub is designed to seat six people, making it suitable for larger groups or families who want to soak together. The Intex PureSpa 4-Person Octagonal Bubble Spa is rated for four people. This two-person difference impacts how many guests you can host at one time. If you frequently entertain more than four adults, the six-person model is the practical choice. For smaller households or couples who rarely host large gatherings, the four-person capacity is sufficient and may feel more intimate.
Bubble Jet Count
The Intex PureSpa 4-Person Octagonal Bubble Spa specifies a jet count of 120 bubble jets. This high number of jets distributes heated air throughout the water, creating a vigorous bubbling effect that covers the entire seating area. The Intex PureSpa 6-Person Hot Tub with Insulated Cover lists heated air bubble technology but does not provide a specific jet count in its published specifications. While both use the same underlying heated air technology, the four-person model explicitly quantifies its bubble output. This transparency allows you to anticipate a consistent, widespread bubbling experience in the octagonal model.
Construction Material
Both spas utilize Fiber-Tech Beam Construction, which is a key shared feature. This technology provides structural stability and strength, allowing the inflatable walls to support the weight of the water and multiple users without sagging. The material ensures a durable and supportive seating surface for both models. Since the construction method is identical, neither product has an advantage in terms of build quality or material resilience. You can expect similar longevity and stability from the Fiber-Tech layers in both the six-person square tub and the four-person octagonal spa.
Cover and Insulation
Both models include an energy-efficient spa cover made with high-density thermal-resistant foam. This cover is designed to lock in heat and minimize thermal loss, improving energy efficiency by up to 50 percent. The six-person model emphasizes this cover as a standard feature that boosts performance and allows for longer, more relaxing sessions. The four-person model also highlights the cover’s role in enhancing performance and safety. Since both spas feature this same insulation technology, heat retention should be comparable relative to their water volume. The cover is a critical component for maintaining temperature in both units.
Which Intex PureSpa Model Fits You
You need space for a group
The Intex PureSpa 6-Person Hot Tub offers a seating capacity for six people. Its square footprint measures 85 inches by 85 inches. This larger interior volume allows more guests to relax simultaneously. If you frequently host friends or family, the extra capacity ensures everyone has room to unwind comfortably in the heated air bubbles.
You want targeted jet coverage
The Intex PureSpa 4-Person Octagonal Bubble Spa includes 120 bubble jets. This high jet count provides extensive coverage across the seating area. The octagonal shape with outer dimensions of 71 inches by 71 inches creates distinct corners. You get focused hydrotherapy stimulation from the numerous jets in a compact footprint that fits smaller patios.
You prefer a compact footprint
This model features an octagonal design with outer dimensions of 71 inches by 71 inches. It is smaller than the square 6-person option. The compact size makes it easier to place on limited deck space. You still get Fiber-Tech construction and an energy-efficient cover, but with a smaller water volume that suits tighter outdoor areas.
The products compared
Intex PureSpa 6-Person Hot Tub with Insulated Cover
Best for: groups seeking spacious, gentle air bubble relaxation
- Seating Capacity
- 6-Person
- Jet Type
- Heated air bubbles
- Material
- Fiber-Tech
- Dimensions
- 85 x 85 x 28 inches
- Features
- Insulated Cover, Energy-Saving, Pool Cover
- Use
- Spas
View on Amazon: Intex PureSpa 6-Person Hot Tub with Insulated Cover Affiliate link
This Intex PureSpa 6-Person model uses heated air bubble technology to relax your muscles. Its 85-inch square footprint accommodates up to six people comfortably. The Fiber-Tech beam construction provides stable support, while the energy-efficient cover with high-density foam helps retain heat. A built-in hard water treatment system reduces mineral buildup. You get a spacious, durable inflatable spa designed for group relaxation without complex jet systems.
Pros
- Heated air bubble technology for full-body relaxation
- Energy-efficient cover boosts heat retention by up to 50%
- Fiber-Tech beam construction for lasting strength and stability
- Built-in hard water treatment system protects against mineral buildup
Cons
- Only heated air bubbles, not pressurized water jets
- Requires separate purchase of saltwater conversion kit for chlorine-free water
- Large 85-inch footprint needs significant outdoor space
Good fit if
- You want seating for up to six people
- You prefer gentle heated air bubbles over high-pressure jets
- You need a durable inflatable tub with a thermal cover
Skip if
- You require pressurized water jets for massage
- You have limited outdoor space for an 85-inch tub
- You want a chlorine-free system included in the box
Verdict: Intex PureSpa 6-Person Inflatable Hot Tub offers ample seating and efficient heat retention for groups. It suits buyers who prioritize capacity and gentle air bubbles over intense jet pressure.
Intex PureSpa 4-Person Octagonal Bubble Spa
Best for: small groups and hard water areas
- Seating Capacity
- 4-person
- Jet Count
- 120
- Jet Type
- Bubble jets
- Material
- Fiber-Tech
- Dimensions
- 71" x 71" x 28"
- Shape
- Octagonal
View on Amazon: Intex PureSpa 4-Person Octagonal Bubble Spa Affiliate link
This Intex PureSpa features an octagonal design with a 4-person seating capacity. It includes 120 heated air bubble jets and uses Fiber-Tech beam construction for stability. The unit comes with an energy-efficient cover that reduces heat loss by up to 50%. It also has a built-in hard water treatment system. This model suits you if you want a compact spa that fits well in smaller outdoor spaces while providing gentle bubble massage.
Pros
- 120 heated air bubble jets
- Octagonal shape with 4-person capacity
- Energy-efficient cover reduces heat loss by 50%
- Built-in hard water treatment system
- Fiber-Tech beam construction for stability
Cons
- Smaller 4-person capacity compared to 6-person models
- Bubble jets only, lacking targeted massage
- Octagonal shape may not fit all standard footprints
Good fit if
- You need a spa for two to four people
- You want to minimize heat loss with an insulated cover
- You have hard water and need a treatment system
Skip if
- You require seating for more than four people
- You prefer targeted jet massage over bubble jets
- You need a rectangular shape for corner placement
Verdict: Intex PureSpa 4-Person Octagonal is a compact option for small groups. It fits you if you prioritize energy efficiency and hard water protection over higher seating capacity.
Specifications side by side
| Spec | Intex PureSpa 6-Person Hot Tub with Insulated Cover | Intex PureSpa 4-Person Octagonal Bubble Spa |
|---|---|---|
| Seating Capacity | 6-Person | 4-person |
| Jet Count | not stated | 120 |
| Jet Type | Heated air bubbles | Bubble jets |
| Material | Fiber-Tech | Fiber-Tech |
| Dimensions | 85 x 85 x 28 inches | 71" x 71" x 28" |
| Shape | not stated | Octagonal |
| Features | Insulated Cover, Energy-Saving, Pool Cover | Insulated Cover, Energy-Saving, Pool Cover |
| Use | Spas | Spas |
| Size | 6 Person | 4-Person |
| Weight | not stated | 111 pounds |
| Color | Blue | Gray |
| Model | 28431EH | 28433EP |
Frequently asked questions
Which model has more bubble jets?
The Intex PureSpa 4-Person Octagonal Bubble Spa lists 120 bubble jets. The 6-Person model does not specify a jet count in its published data. Both units rely on heated air bubbles for massage rather than targeted hydrotherapy jets. You get a consistent, gentle bubble experience from the octagonal model's specified count.
What is the difference in outer dimensions between the two tubs?
The 6-Person model measures 85 inches by 85 inches. The 4-Person Octagonal model measures 71 inches by 71 inches. This makes the larger unit significantly wider and longer. You need more floor space for the square 6-Person version to fit comfortably in your outdoor area.
Do both hot tubs include insulated covers?
Yes, both models feature insulated covers. The product attributes for each unit list an insulated cover as a standard feature. This helps maintain water temperature and improves energy efficiency. You get this protective layer with either the larger square tub or the smaller octagonal option.
Which hot tub is heavier?
The Intex PureSpa 4-Person Octagonal Bubble Spa weighs 111 pounds. The weight for the 6-Person model is not provided in the available data. The lighter weight of the octagonal unit may make it slightly easier to move during setup or relocation compared to the larger square tub.
What colors are available for these Intex PureSpa models?
The 6-Person Hot Tub is listed in blue. The 4-Person Octagonal Bubble Spa is available in gray. You can choose based on your preference for how the tub blends with your patio or deck. These are the only color options specified in the current product data.
Are both models suitable for hard water areas?
Yes, both units are designed for hard water protection. The product data notes that both share hard water treatment systems. This feature helps manage mineral buildup from hard water sources. You can use either model in areas with tough water conditions without worrying about immediate scale damage.
Which model is better for small groups?
The 4-Person Octagonal model is ideal for small groups. It seats four people comfortably in a compact footprint. The 6-Person model is better for larger gatherings. If you prioritize energy efficiency and a smaller space requirement, the octagonal shape fits your needs better than the larger square option.
Does the 6-Person model have a specific model number?
Yes, the 6-Person Hot Tub uses model number 28431EH. The 4-Person Octagonal model uses 28433EP. These numbers help you identify the exact unit when checking manuals or replacement parts. You can use these codes to verify specifications or find compatible accessories for your specific Intex PureSpa.

