Pentair WhisperFlo VST
#1 in Large PoolsFull review
For in-ground pools that need a bit more than a 1.5 HP pump, especially ones replacing an old WhisperFlo, where a simple keypad pump is enough.
Amazon $1,559$1,559
The Pentair WhisperFlo VST rates 3.7 among large pools pool pumps; the Pentair SuperFlo VST rates 3.3 among in-ground ones. The Pentair SuperFlo VST costs $159.01 less ($1,399.99 vs $1,559).
Pentair SuperFlo VST
#11 in In-GroundFull review
A plain, efficient variable-speed swap for a 1 to 1.5 HP pump on an ordinary in-ground pool, for owners happy to set three speeds on the keypad.
Amazon $1,399.99$1,399.99
Prices were last checked October 27, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Scores side by side
These two sit in different pool type classes (large pools and in-ground), and each is scored against the reference points for its own class, so a rating says how well each does among its own pool type peers. How we rank explains each factor.
| Factor weight | Pentair WhisperFlo VST | Pentair SuperFlo VST |
|---|---|---|
| Overall rating | 3.7/5 | 3.3/5 |
| Efficiency 35% | 88 WEF 8.4, 54% above the ENERGY STAR minimum for its size | 61 WEF 9, 40% above the ENERGY STAR minimum for its size |
| Value 25% | 49 $1,559 for 2.6 HP ($600 per HP) | 46 $1,400 for 2.2 HP ($636 per HP) |
| Warranty 15% | 25 2-year warranty | 25 2-year warranty |
| Controls 15% | 65 Built-in schedule, works with pentair automation (rs-485 kit), relay or digital-input controllers | 65 Built-in schedule, works with pentair automation (rs-485 kit), relay or digital-input controllers |
| Noise 10% | 50 noise not published (neutral score used) | 50 noise not published (neutral score used) |
Specifications
| Pentair WhisperFlo VST | Pentair SuperFlo VST | |
|---|---|---|
| Efficiency ratings | ||
| Pump type | In-ground (self-priming) | In-ground (self-priming) |
| Motor | Variable speed | Variable speed |
| Rated horsepower (DOE) | 2.6 HP | 2.2 HP |
| Hydraulic horsepower (DOE) | 1.6 HP | 1.1 HP |
| Weighted energy factor (WEF) | 8.4 kgal/kWh | 9 kgal/kWh |
| ENERGY STAR minimum for its size | 5.5 kgal/kWh | 6.4 kgal/kWh |
| ENERGY STAR certified | Yes | Yes |
| Pump | ||
| Voltage | 115/230 V | 115/230 V |
| Speed range | 450 to 3,450 rpm | 450 to 3,450 rpm |
| Maximum flow | 140 gpm | 113 gpm |
| Pipe size | 2 in | 1.5 in |
| Weight | 45 lb | - |
| Controls | ||
| Built-in schedule | Yes | Yes |
| Freeze protection | No | No |
| Wi-Fi | No | No |
| Automation compatibility | Pentair automation (RS-485 kit), Relay or digital-input controllers | Pentair automation (RS-485 kit), Relay or digital-input controllers |
| Warranty and models | ||
| Warranty | 2 years | 2 years |
| Warranty terms | Pentair lists the SuperFlo VS/VST, SuperMax VS and WhisperFlo VST pumps at 2 years (parts and labor when professionally installed from a dealer, pool builder or service company); a qualifying pump + filter + one more Pentair product install extends that to 3 years. Bought online (including EC- part numbers) it is 1 year, parts only. | Pentair lists the SuperFlo VS/VST, SuperMax VS and WhisperFlo VST pumps at 2 years (parts and labor when professionally installed from a dealer, pool builder or service company); a qualifying pump + filter + one more Pentair product install extends that to 3 years. Bought online (including EC- part numbers) it is 1 year, parts only. |
| Also sold as | - | Sta-Rite SuperMax VS (343001) |
| Released | 2022-03 | 2021-10 |