Hayward MaxFlo VS 420
#25 in In-GroundFull review
The bigger MaxFlo VS 400, for mid-size pools that need more flow in a compact body, controlled from the OmniX app.
INYOPools $1,834.99$1,834.99
The Hayward MaxFlo VS 420 is the better pool pump overall, rated 3.0 to 2.6. The Hayward MaxFlo VS 420 leads on controls and warranty. The Speck BADU Pro-IV VS 2.25 HP wins on efficiency. The Hayward MaxFlo VS 420 costs $265 less ($1,834.99 vs $2,099.99).
Speck BADU Pro-IV VS 2.25 HP
#32 in In-GroundFull review
A middle size for pools that need more than 1.65 HP, but most buyers do better with the ENERGY STAR Pro-V for rebates.
INYO Pools $2,099.99 Speck (find a dealer)$2,099.99
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.
Which should you buy?
- Choose the Hayward MaxFlo VS 420 for controls (Built-in schedule, optional wi-fi module, works with hayward omnix vs Built-in schedule) and warranty (3-year warranty vs 2-year warranty).
- Choose the Speck BADU Pro-IV VS 2.25 HP for efficiency (WEF 7.6, 29% above the ENERGY STAR minimum for its size vs WEF 8.6, 22% above the ENERGY STAR minimum for its size).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every in-ground pool pump; a clear win is highlighted. How we rank explains each one.
| Factor weight | Hayward MaxFlo VS 420 | Speck BADU Pro-IV VS 2.25 HP |
|---|---|---|
| Overall rating | 3.0/5 | 2.6/5 |
| Efficiency 35% | 24 WEF 8.6, 22% above the ENERGY STAR minimum for its size | 38 WEF 7.6, 29% above the ENERGY STAR minimum for its size |
| Value 25% | 31 $1,835 for 2.2 HP ($816 per HP) | 24 $2,100 for 2.2 HP ($933 per HP) |
| Warranty 15% | 50 3-year warranty | 25 2-year warranty |
| Controls 15% | 85 Built-in schedule, optional wi-fi module, works with hayward omnix | 30 Built-in schedule |
| Noise 10% | 50 noise not published (neutral score used) | 50 noise not published (neutral score used) |
Specifications
| Hayward MaxFlo VS 420 | Speck BADU Pro-IV VS 2.25 HP | |
|---|---|---|
| Efficiency ratings | ||
| Pump type | In-ground (self-priming) | In-ground (self-priming) |
| Motor | Variable speed | Variable speed |
| Rated horsepower (DOE) | 2.2 HP | 2.2 HP |
| Hydraulic horsepower (DOE) | 0.8 HP | 1.4 HP |
| Weighted energy factor (WEF) | 8.6 kgal/kWh | 7.6 kgal/kWh |
| ENERGY STAR minimum for its size | 7 kgal/kWh | 5.9 kgal/kWh |
| ENERGY STAR certified | No | No |
| Pump | ||
| Voltage | 115/230 V | 230 V |
| Speed range | 600 to 3,450 rpm | 600 to 3,450 rpm |
| Maximum flow | 120 gpm | 160 gpm |
| Pipe size | 2 in | 2 in |
| Size (W × D × H) | 9.8 × 25.1 × 11.1 in | - |
| Controls | ||
| Built-in schedule | Yes | Yes |
| Freeze protection | Yes | Yes |
| Wi-Fi | Optional module | No |
| App | Hayward OmniX | - |
| Automation compatibility | Hayward OmniX | - |
| Warranty and models | ||
| Warranty | 3 years | 2 years |
| Warranty terms | Sold only through pool pros: 3 years parts when sold by a Totally Hayward partner (sell sheet); the product page lists 3 years parts and 1 year labor. Exclusions and other terms at hayward.com/expert. | Speck limited warranty: 2 years from purchase (no more than 3 years from factory shipment), repair, replace or refund, no labor; it is conditional on installation by a qualified pool professional and a licensed electrician, so a DIY install voids it. |
| Released | 2025 | - |