The best mains pump for a busy fixed tank: continuous duty, fastest flow and Fill-Rite’s lifetime backing. Add a meter later if you need one.
Amazon $1,199.99The Fill-Rite NX25 115V 25 GPM rates 4.2 among 115V AC fuel transfer pumps; the Fill-Rite NX25 12/24V 25 GPM rates 4.1 among 12V DC ones. The Fill-Rite NX25 115V 25 GPM costs $185.96 less ($1,199.99 vs $1,385.95).

For fleets and contractors who fill heavy equipment all day from a truck. Nothing else here on 12V matches its continuous duty and flow, but most owners will not need it.
Amazon $1,385.95Prices were last checked November 3, 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 power classes (115V AC and 12V DC), and each is scored against the reference points for its own class, so a rating says how well each does among its own power peers. How we rank explains each factor.
| Factor weight | Fill-Rite NX25 115V 25 GPM | Fill-Rite NX25 12/24V 25 GPM |
|---|---|---|
| Overall rating | 4.2/5 | 4.1/5 |
| Price 20% | 14 $1,199.99 | 4 $1,385.95 |
| Flow 25% | 100 25 gpm | 100 25 gpm |
| Duty cycle 15% | 100 continuous duty | 100 continuous duty |
| Safety listing 15% | 100 UL listed, explosion-proof motor | 100 UL listed, explosion-proof motor |
| Kit 10% | 45 auto nozzle, 18 ft hose | 45 auto nozzle, 18 ft hose |
| Warranty 15% | 100 limited lifetime warranty | 100 limited lifetime warranty |
Specifications
| Fill-Rite NX25 115V 25 GPM | Fill-Rite NX25 12/24V 25 GPM | |
|---|---|---|
| Pump | ||
| Power | 115V AC | 12/24V DC |
| Flow | 25 gpm | 25 gpm |
| Duty cycle | Continuous | Continuous |
| Current | 3.5 A | 30 A |
| Max pressure | 25 psi | 21 psi |
| Max head | 48 ft | 48 ft |
| Suction lift | 12 ft | 12 ft |
| Mount | Bung | Bung |
| Safety | ||
| UL listed | Yes | Yes |
| Explosion-proof motor | Yes | Yes |
| Gasoline approved | Yes | Yes |
| In the box | ||
| Meter | No | No |
| Nozzle | Automatic | Automatic |
| Hose | 18 ft | 18 ft |
| Filter | No | No |
| Build | ||
| Weight | 44 lb | - |
| Warranty | Limited lifetime | Limited lifetime |