Pentair 011533 WhisperFlo VST Variable Alternatives: 6 Similar Picks Compared
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You are looking at pentair 011533 whisperflo vst variable alternatives for a reason. This Pentair pump offers 2.6 THP power and handles 115v or 208-230v inputs. It weighs 46.3 pounds and fits standard poolside setups. These specs make it a strong choice for high-power in-ground pools. However, you might need a different size, feature set, or brand. Some buyers want remote app control. Others seek smaller footprints or specific voltage requirements that this unit does not provide.
We compared 6 similar picks to find better matches for your specific needs. The alternatives in this list were chosen because their specifications overlap with the original Pentair model. You will find options that vary in horsepower, voltage compatibility, and physical dimensions. Some include heating capabilities, while others focus purely on filtration efficiency. Each product in this guide is ranked by how well its published specs align with your potential use case. You can now compare dimensions, power ratings, and operational modes side by side. This approach helps you identify the exact pump that fits your infrastructure without guessing.
Our top pick: Pentair WhisperFlo VST Variable Speed Pool Pump.
How the alternatives compare
AQUASTRONG Dual-Mode Inverter Pool Heat Pump
The AQUASTRONG unit is a heat pump, not a circulation pump. It measures 18 by 39 by 48 inches and weighs 117 pounds. This is much larger and heavier than the 46.3 pound Pentair pump. It uses a dual-mode inverter for temperature control. You get remote app management and dual-mode operation. The Pentair offers 2.6 THP for water movement. The AQUASTRONG focuses on heating and cooling efficiency. Choose this if you need to extend your swimming season. You give up the high-power filtration of the Pentair. This pick suits larger pools requiring precise temperature regulation.
Aquastrong 1.5 HP Variable Speed Pool Pump
The Aquastrong 1.5 HP pump is a direct alternative for filtration. It runs on 220V power. The Pentair handles 115v or 208-230v inputs. This Aquastrong model is 12 by 14 by 30 inches. It is smaller than the Pentair’s standard footprint. It offers strong flow and energy efficiency. You get self-priming capabilities. The Pentair provides higher 2.6 THP power. This Aquastrong unit suits users with 220V power. It lacks smart features found in some competitors. You customize filtration schedules manually. Pick this if you prioritize energy savings over maximum horsepower.
XtremepowerUS 1.5 HP Variable Speed Pool Pump
The XtremepowerUS pump is a 1.5 HP variable speed unit. It runs on 230V power. The Pentair accepts 115v or 208-230v. This Xtremepower model has a 2-inch port size. It measures 25 by 13 by 45 inches and weighs 40 pounds. It is lighter than the 46.3 pound Pentair. You get manual timer controls. The Pentair lacks remote app convenience as well. This unit suits buyers with ample installation space. You prioritize energy efficiency and budget. The Pentair offers higher 2.6 THP power. Choose this if you want a solid, efficient pump without extra features.
Varpoolfaye 17,000 Gallon Inverter Pool Heat Pump
The Varpoolfaye unit is a heat pump for large pools. It supports up to 17,000 gallons. The Pentair is a circulation pump. This Varpoolfaye model measures 15 by 25.7 by 36.3 inches. It runs on 220V power. You get app control and quiet, efficient operation. It provides both heating and cooling. The Pentair focuses on water movement with 2.6 THP. This heat pump suits large inground pools needing temperature control. You give up the high-power filtration of the Pentair. Pick this if you value climate regulation over circulation power.
Pentair SuperFlo VS 1.5 HP Variable Speed Pump
The Pentair SuperFlo VS is another variable speed pump. It has 1.5 HP. The original Pentair offers 2.6 THP. This SuperFlo model measures 15.5 by 12.5 by 28 inches. It weighs 25.8 pounds. It is significantly lighter than the 46.3 pound original. You get OEM quality and automation integration. The original lacks smart app features. This SuperFlo suits inground pool owners. You prioritize energy efficiency and durable motor design. Choose this if you want a lighter, efficient pump. You give up the higher power output of the original 2.6 THP model.
Vidapool 75,000 BTU Inverter Pool Heat Pump
The Vidapool unit is a heat pump for large pools. It supports up to 21,000 gallons. The Pentair is a circulation pump. This Vidapool model measures 9 by 18 by 14 inches. It is compact compared to the Pentair. You get APP control and dual heating or cooling modes. It is designed for pools up to 21,000 gallons. The Pentair offers 2.6 THP for water movement. This heat pump suits owners needing temperature regulation. You give up the high-power filtration of the Pentair. Pick this if you want app-controlled climate management for large pools.
Quick picks
Our 7 picks
Pentair WhisperFlo VST Variable Speed Pool Pump
Best for: In-ground pools needing high power
- Voltage
- 115v/208-230v
- Use
- Poolside
- Speed
- Variable Speed
- Dimensions
- 5 × 5 × 5 inches
- Weight
- 46.3 pounds
View on Amazon: Pentair WhisperFlo VST Variable Speed Pool Pump Affiliate link
The Pentair 011533 WhisperFlo VST is a variable-speed pool pump rated at 2.6 THP. It supports dual voltage options of 115V and 208-230V, allowing flexibility for different electrical setups. The unit weighs 46.3 pounds and features a beige finish. This pump is designed for poolside installation and suits users seeking a reliable, high-performance motor for in-ground or standard pool applications.
Pros
- 2.6 THP motor power for strong water circulation
- Variable speed technology for energy efficiency
- Dual voltage compatibility (115V/208-230V)
- Standard size fits typical pool setups
Cons
- Heavier build at 46.3 pounds requires sturdy support
- No smart app or remote control mentioned
- Limited color options available in beige only
Good fit if
- You need a high-horsepower pump for large pools
- You want dual voltage flexibility for installation
- You prefer a trusted brand with proven reliability
Skip if
- You require smart home integration or app control
- You need a lightweight pump for easy handling
- You are looking for a compact or small-footprint unit
Verdict: Pentair WhisperFlo VST 2.6 THP delivers robust performance for pool owners who prioritize power and voltage flexibility over smart features. It is an ideal fit for those maintaining in-ground pools with standard electrical infrastructure.
AQUASTRONG Dual-Mode Inverter Pool Heat Pump
Best for: extending swimming seasons with remote control
- Heating Capacity
- 75000BTU
- Voltage
- 220V
- Compressor Technology
- Full DC variable frequency
- Operational Modes
- Heating and cooling
- COP Rating
- 15.8
- Connectivity
- Smart WiFi, app control
View on Amazon: AQUASTRONG Dual-Mode Inverter Pool Heat Pump Affiliate link
This Aquastrong heat pump extends your swimming season with dual heating and cooling modes. It uses full DC variable frequency technology to reach a COP rating of 15.8, offering high efficiency. You can control the unit remotely via app or the built-in panel. The system operates quietly at 53 dB and includes auto-defrost cycles. It fits pools up to 21,000 gallons and connects with standard 1.5-inch adapters.
Pros
- High COP rating of 15.8 for energy savings
- Dual heating and cooling modes for year-round use
- App control for remote temperature adjustments
- Quiet operation at 53 dB
Cons
- Large physical footprint at 39 inches long
- Heavy at 117 pounds, requiring sturdy support
- Limited to heating above 47°F and cooling down to 47°F
Good fit if
- You want to extend your swimming season into cooler months
- You prefer remote control via a smartphone app
- You need both heating and cooling capabilities
Skip if
- You have limited space for a 39-inch unit
- You cannot support a 117-pound weight
- You only need heating without cooling functionality
Verdict: Aquastrong 18x39x48 Pool Heat Pump delivers efficient temperature control for larger pools. It suits buyers who value remote app management and dual-mode operation over compact size.
Aquastrong 1.5 HP Variable Speed Pool Pump
Best for: Energy-conscious pool owners with 220V power
- Voltage
- 220V
- Features
- Energy-Saving, Self-Priming
- Use
- Poolside
- Speed
- Variable Speed
- Horsepower
- 1.5 HP
- Dimensions
- 30 × 12 × 14 inches
View on Amazon: Aquastrong 1.5 HP Variable Speed Pool Pump Affiliate link
The Aquastrong 1.5 HP pump uses variable speed technology to adjust flow from 1200 to 4000 RPM. It delivers up to 8189 GPH at 220V. The design saves energy by reducing consumption significantly compared to traditional models. You can set four custom time periods for filtration. It fits both in-ground and above-ground pools with 1.5-inch or 2-inch adapters.
Pros
- Variable speed range from 1200 to 4000 RPM
- High flow rate of 8189 GPH
- Energy-saving design reduces consumption by up to 80%
- Four customizable time periods for scheduling
Cons
- Only includes a two-year warranty
- No smart app or remote control mentioned
- Requires 220V power supply
Good fit if
- You want to reduce energy costs
- You need precise flow control
- You have a 220V outlet
Skip if
- You only have 110V power
- You want smart home integration
- You need a longer warranty
Verdict: Aquastrong 1.5 HP Variable Speed Pool Pump offers strong flow and energy efficiency for users with 220V power who want to customize filtration schedules without smart features.
XtremepowerUS 1.5 HP Variable Speed Pool Pump
Best for: energy-conscious owners with space
- Voltage
- 230V
- Use
- Poolside, Inground Pools
- Speed
- Variable Speed
- Horsepower
- 1.5 HP
- Port Size
- 2 Inch
- Dimensions
- 45 × 25 × 13 inches
View on Amazon: XtremepowerUS 1.5 HP Variable Speed Pool Pump Affiliate link
This 1.5 HP pump runs on 230V and features variable speed technology to reduce energy use by up to 80%. It includes an intelligent LCD control panel with a 24-hour timer and three preset modes: ECO, CLEAN, and BOOST. The unit weighs 40 pounds and measures 25 by 13 by 45 inches. It is designed for both inground and above-ground pools, offering high flow rates and thermal protection for reliable operation.
Pros
- Variable speed motor reduces energy consumption by up to 80%
- LCD panel displays wattage and speed settings
- Built-in 24-hour timer with ECO, CLEAN, and BOOST modes
- Thermal overload protection prevents motor overheating
Cons
- Larger footprint at 45 inches long compared to compact pumps
- Heavier build at 40 pounds
- No mention of smartphone app or remote control integration
Good fit if
- You want to lower energy costs with variable speed technology
- You need a pump with a built-in timer for scheduling
- You have space for a larger, 45-inch unit
Skip if
- You require a compact pump under 20 inches long
- You prefer remote or app-based control
- You need a lighter unit under 30 pounds
Verdict: XtremepowerUS 1.5HP Variable Speed Pool Pump suits buyers who prioritize energy efficiency and manual timer controls over remote convenience. It is a solid choice for those with ample installation space.
Varpoolfaye 17,000 Gallon Inverter Pool Heat Pump
Best for: large inground pools needing cooling
- Heating Capacity
- 58,000 Btu
- Pool Capacity
- 17,000 Gallon
- Voltage
- 220V
- Compressor Technology
- Inverter
- Operational Modes
- Heating and Cooling
- COP Rating
- 6.6
View on Amazon: Varpoolfaye 17,000 Gallon Inverter Pool Heat Pump Affiliate link
This Varpoolfaye unit is an electric heat pump for inground pools up to 17,000 gallons. It offers heating from 46°F to 104°F and cooling down to 82°F. The inverter compressor delivers a COP of 6.60 for efficient operation. You can control it via an app or touchscreen. It runs quietly at 45 decibels. This model suits those wanting precise temperature management for large pools.
Pros
- High COP of 6.60 for energy efficiency
- App and touchscreen control for remote adjustments
- Heating and cooling operational modes
- Ultra-quiet operation at 45 decibels
Cons
- Limited to pools up to 17,000 gallons
- Requires 220V electrical connection
- Lacks a physical remote control
Good fit if
- You have an inground pool under 17,000 gallons
- You want to cool your pool in summer
- You prefer app-based temperature control
Skip if
- Your pool exceeds 17,000 gallons
- You only have 110V outlets available
- You need a unit for saltwater spas
Verdict: Varpoolfaye 17,000 Gal Heat Pump is a solid choice for large inground pools needing both heating and cooling. It fits buyers who value app control and quiet, efficient operation.
Pentair SuperFlo VS 1.5 HP Variable Speed Pump
Best for: inground pools needing OEM variable speed efficiency
- Voltage
- 115V to 230V
- Connectivity
- RS-485
- Use
- Poolside, Inground Pools
- Speed
- Variable Speed
- Horsepower
- 1.5 HP
- Dimensions
- 28 × 15.5 × 12.5 inches
View on Amazon: Pentair SuperFlo VS 1.5 HP Variable Speed Pump Affiliate link
The Pentair SuperFlo VS is a 1.5 HP variable speed pool pump designed for inground pools. It features a totally enclosed fan cooled motor and a digital control keypad with three programmable speeds. The unit supports 115V to 230V power and includes RS-485 connectivity for automation. It weighs 25.8 pounds and measures 28 inches in length. This pump suits users seeking OEM reliability and energy-efficient circulation.
Pros
- Variable speed technology adjusts pump speed to match pool needs for energy efficiency
- Digital control keypad offers three programmable speeds with a 24-hour clock
- Totally enclosed fan cooled motor design enhances durability and service life
- RS-485 connectivity allows integration with automation systems and IoT devices
- Universal power compatibility works with 115V to 230V without special wiring
Cons
- Lacks mobile app control for remote management
- No included remote control for manual operation
- Heavier at 25.8 pounds compared to lighter plastic alternatives
Good fit if
- You need a genuine OEM Pentair replacement part
- You want variable speed energy savings for an inground pool
- You require RS-485 connectivity for home automation
Skip if
- You prefer a pump with built-in Wi-Fi app control
- You need a pump under 20 pounds for easy handling
- You are installing an above-ground pool only
Verdict: Pentair SuperFlo VS 1.5 HP Variable Speed Pump is a solid choice for inground pool owners who value OEM quality and automation integration. It fits users who prioritize energy efficiency and durable motor design over remote app convenience.
Vidapool 75,000 BTU Inverter Pool Heat Pump
Best for: pools up to 21,000 gallons
- Heating Capacity
- 75,000 BTU
- Pool Capacity
- 21,000 gallons
- Voltage
- 220V
- Compressor Technology
- Inverter
- Operational Modes
- Heating & Cooling
- COP Rating
- 12
View on Amazon: Vidapool 75,000 BTU Inverter Pool Heat Pump Affiliate link
This Vidapool heat pump targets pools up to 21,000 gallons. It delivers 75,000 BTU of heating power using air-source technology. The unit supports APP remote control for scheduling and temperature adjustments. It offers both heating and cooling modes. The device operates at 36dB. It fits pools of this specific capacity range.
Pros
- Heats pools up to 21,000 gallons
- 75,000 BTU heating capacity
- APP remote control support
- Heating and cooling operational modes
Cons
- Limited to pools of 21,000 gallons or smaller
- No physical remote control mentioned
- Requires APP for operation
Good fit if
- You have a pool up to 21,000 gallons
- You want heating and cooling modes
- You prefer APP control
Skip if
- You have a pool larger than 21,000 gallons
- You need a physical remote
- You want a pump, not a heater
Verdict: Vidapool 21,000 Gallon Heat Pump suits owners of pools up to 21,000 gallons who want APP control and dual heating or cooling modes.
Specifications side by side
| Spec | Pentair WhisperFlo VST Variable Speed Pool Pump | AQUASTRONG Dual-Mode Inverter Pool Heat Pump | Aquastrong 1.5 HP Variable Speed Pool Pump | XtremepowerUS 1.5 HP Variable Speed Pool Pump | Varpoolfaye 17,000 Gallon Inverter Pool Heat Pump | Pentair SuperFlo VS 1.5 HP Variable Speed Pump | Vidapool 75,000 BTU Inverter Pool Heat Pump |
|---|---|---|---|---|---|---|---|
| Heating Capacity | not stated | 75000BTU | not stated | not stated | 58,000 Btu | not stated | 75,000 BTU |
| Pool Capacity | not stated | not stated | not stated | not stated | 17,000 Gallon | not stated | 21,000 gallons |
| Voltage | 115v/208-230v | 220V | 220V | 230V | 220V | 115V to 230V | 220V |
| Compressor Technology | not stated | Full DC variable frequency | not stated | not stated | Inverter | not stated | Inverter |
| Operational Modes | not stated | Heating and cooling | not stated | not stated | Heating and Cooling | not stated | Heating & Cooling |
| COP Rating | not stated | 15.8 | not stated | not stated | 6.6 | not stated | 12 |
| Connectivity | not stated | Smart WiFi, app control | not stated | not stated | WiFi App Control | RS-485 | Smart WiFi Control |
| Features | not stated | Energy-Saving | Energy-Saving, Self-Priming | not stated | not stated | not stated | Energy-Saving |
| Control Type | not stated | not stated | not stated | not stated | App Control | not stated | not stated |
| Use | Poolside | Poolside, Inground Pools | Poolside | Poolside, Inground Pools | Poolside, Above Ground Pools, Inground Pools | Poolside, Inground Pools | Poolside |
| Capacity | not stated | not stated | not stated | not stated | not stated | not stated | 21,000 Gallons |
| Height | 5 inches | 48" | 14 inches | 13 inches | 25.7 inches | 12.5 inches | 18 inches |
| Speed | Variable Speed | not stated | Variable Speed | Variable Speed | not stated | Variable Speed | not stated |
| Horsepower | not stated | not stated | 1.5 HP | 1.5 HP | not stated | 1.5 HP | not stated |
| Port Size | not stated | not stated | not stated | 2 Inch | not stated | not stated | not stated |
| Dimensions | 5 × 5 × 5 inches | 39 × 17.3 × 25.6 inches | 30 × 12 × 14 inches | 45 × 25 × 13 inches | 36.3 × 15 × 25.7 inches | 28 × 15.5 × 12.5 inches | 14 × 9 × 18 inches |
| Weight | 46.3 pounds | 117 pounds | not stated | 40 pounds | not stated | 25.8 pounds | not stated |
| Size | Standard | 18'*39'*48" | not stated | 1.5HP Variable Speed Pool Pump with Panel | 17000 Gallons | Pack of 1 | 30'*20'*4' |
| Color | Beige | White | Dark Black | Black | Grey | Tan | Metal Black |
| Model | 011533 | HEX035 | PSP150PM | v_75125-75117 Parent | KSPF-010L1UR1A2 | 342001 | VTX016 |
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Frequently asked questions
Which pump is best for high-power in-ground pools?
The Pentair WhisperFlo VST is the best overall pick for this need. It delivers 2.6 THP power and supports 115v or 208-230v inputs. The unit weighs 46.3 pounds and measures 5 inches in width, height, and length. This compact size fits standard poolside setups while providing robust performance.
What is the most energy-efficient variable speed pump?
The AQUASTRONG 1.5 HP Variable Speed Pool Pump is the top energy-saving choice. It operates on 220V power and features self-priming capabilities. The pump is 12 inches wide, 14 inches high, and 30 inches long. It offers strong flow for users who want efficiency without smart app controls.
Which heat pump works for pools up to 21,000 gallons?
The Vidapool 75,000 BTU Inverter Pool Heat Pump is rated for pools up to 21,000 gallons. It measures 9 inches wide, 18 inches high, and 14 inches long. This unit provides APP control and dual heating or cooling modes. It is designed for poolside installation in Metal Black.
Is there a budget-friendly variable speed pump option?
The XtremepowerUS 1.5 HP Variable Speed Pool Pump is the best budget pick. It runs on 230V power with 2-inch ports. The unit is 25 inches wide, 13 inches high, and 45 inches long, weighing 40 pounds. It suits buyers who prioritize energy efficiency and manual timer controls.
Which heat pump handles large inground pools needing cooling?
The Varpoolfaye 17,000 Gallon Inverter Pool Heat Pump is ideal for large inground pools. It operates on 220V power and supports both heating and cooling. The unit measures 15 inches wide, 25.7 inches high, and 36.3 inches long. It offers app control and quiet, efficient operation in Grey.
What is a solid OEM variable speed pump alternative?
The Pentair SuperFlo VS 1.5 HP Variable Speed Pump is a solid OEM choice. It weighs 25.8 pounds and measures 15.5 inches wide, 12.5 inches high, and 28 inches long. This Tan unit fits poolside or in-ground setups. It prioritizes energy efficiency and durable motor design over remote app convenience.