CircuPool SmartFlo AF 3.9P
#2 in Large PoolsFull review
A high-flow smart pump for big pools with water features on a Pentair-footprint pad; most pools need less.
Amazon $1,875$1,875
The CircuPool SmartFlo AF 3.9P is the better pool pump overall, rated 3.6 to 3.1. The CircuPool SmartFlo AF 3.9P leads on efficiency, warranty and value. The Jandy VS FloPro 3.8 HP wins on controls. The CircuPool SmartFlo AF 3.9P costs $624.41 less ($1,875 vs $2,499.41).
Jandy VS FloPro 3.8 HP
#14 in Large PoolsFull review
For large pools with demanding features where a dealer needs more head and flow than a 2.7 HP pump gives; most pools are better served, and cheaper to run, with a smaller pump.
Amazon $2,499.41$2,499.41
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.
Which should you buy?
- Choose the CircuPool SmartFlo AF 3.9P for efficiency (WEF 7.3, 39% above the ENERGY STAR minimum for its size vs WEF 6, 23% above the ENERGY STAR minimum for its size), warranty (5-year warranty vs 3-year warranty) and value ($1,875 for 3.9 HP ($481 per HP) vs $2,499 for 3.8 HP ($658 per HP)).
- Choose the Jandy VS FloPro 3.8 HP for controls (Built-in schedule, optional wi-fi module, works with jandy aqualink, pentair intellicenter, pentair easytouch, pentair intellitouch vs Built-in wi-fi).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every large pools pool pump; a clear win is highlighted. How we rank explains each one.
| Factor weight | CircuPool SmartFlo AF 3.9P | Jandy VS FloPro 3.8 HP |
|---|---|---|
| Overall rating | 3.6/5 | 3.1/5 |
| Efficiency 35% | 58 WEF 7.3, 39% above the ENERGY STAR minimum for its size | 26 WEF 6, 23% above the ENERGY STAR minimum for its size |
| Value 25% | 62 $1,875 for 3.9 HP ($481 per HP) | 44 $2,499 for 3.8 HP ($658 per HP) |
| Warranty 15% | 100 5-year warranty | 50 3-year warranty |
| Controls 15% | 35 Built-in wi-fi | 85 Built-in schedule, optional wi-fi module, works with jandy aqualink, pentair intellicenter, pentair easytouch, pentair intellitouch |
| Noise 10% | 50 noise not published (neutral score used) | 50 noise not published (neutral score used) |
Specifications
| CircuPool SmartFlo AF 3.9P | Jandy VS FloPro 3.8 HP | |
|---|---|---|
| Efficiency ratings | ||
| Pump type | In-ground (self-priming) | In-ground (self-priming) |
| Motor | Variable speed | Variable speed |
| Rated horsepower (DOE) | 3.9 HP | 3.8 HP |
| Hydraulic horsepower (DOE) | 1.8 HP | 2.1 HP |
| Weighted energy factor (WEF) | 7.3 kgal/kWh | 6 kgal/kWh |
| ENERGY STAR minimum for its size | 5.2 kgal/kWh | 4.9 kgal/kWh |
| ENERGY STAR certified | Yes | No |
| Pump | ||
| Voltage | - | 230 V |
| Speed range | - | 600 to 3,450 rpm |
| Maximum flow | - | 200 gpm |
| Pipe size | 2 in | 2 in |
| Size (W × D × H) | 23.8 × 10.9 × 12.8 in | 10 × 24.5 × 14 in |
| Weight | - | 57 lb |
| Controls | ||
| Built-in schedule | - | Yes |
| Freeze protection | No | - |
| Wi-Fi | Built in | Optional module |
| App | - | iAquaLink |
| Automation compatibility | - | Jandy AquaLink, Pentair IntelliCenter, Pentair EasyTouch, Pentair IntelliTouch |
| Warranty and models | ||
| Warranty | 5 years | 3 years |
| Warranty terms | 5-year manufacturer warranty with US-based support, as listed for any buyer. | Jandy Limited Warranty: variable-speed pumps 3 years from retail purchase on a single-family pool, installed and serviced by a licensed or experienced pool professional; parts only, no labor. The warranty does not apply to pumps bought online or through other e-commerce platforms, so an online/DIY buyer gets no Jandy warranty. |
| Also sold as | LINGXIAO Relaax390-VS, Key Lander SWP390-VS, LX SWP390-VS, Iliving ILG8PP390-VS, Aqua Expert VSP39-Pro | - |
| Released | 2026-04 | 2023-09 |