GPI G20 12V 20 GPM with Filter
#3 in 12V DCFull review
The most complete 12V diesel kit short of continuous duty: filter, auto nozzle and long hose. Worth it for anyone fueling common-rail diesel equipment from a field tank.
Amazon $839.99$839.99
The GPI G20 12V 20 GPM with Filter is the better fuel transfer pump overall, rated 3.9 to 3.8. The GPI G20 12V 20 GPM with Filter leads on kit. The GPI G20 12V 20 GPM with Filter costs $94.96 less ($839.99 vs $934.95).
Fill-Rite FR4211H 12V 20 GPM with Meter
#5 in 12V DCFull review
For fleets and farms that fill big diesel machines and must track every gallon. Without that need, the FR4210H does the same pumping for much less.
Amazon $934.95$934.95
Prices 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.
Which should you buy?
- Choose the GPI G20 12V 20 GPM with Filter for kit (auto nozzle, filter, suction pipe, 14 ft hose vs meter, suction pipe, 12 ft hose).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every 12V DC fuel transfer pump; a clear win is highlighted. How we rank explains each one.
| Factor weight | GPI G20 12V 20 GPM with Filter | Fill-Rite FR4211H 12V 20 GPM with Meter |
|---|---|---|
| Overall rating | 3.9/5 | 3.8/5 |
| Price 20% | 29 $839.99 | 23 $934.95 |
| Flow 25% | 75 20 gpm | 75 20 gpm |
| Duty cycle 15% | 50 30 min on, then rest | 50 30 min on, then rest |
| Safety listing 15% | 100 UL listed, explosion-proof motor | 100 UL listed, explosion-proof motor |
| Kit 10% | 68 auto nozzle, filter, suction pipe, 14 ft hose | 55 meter, suction pipe, 12 ft hose |
| Warranty 15% | 100 limited lifetime warranty | 100 limited lifetime warranty |
Specifications
| GPI G20 12V 20 GPM with Filter | Fill-Rite FR4211H 12V 20 GPM with Meter | |
|---|---|---|
| Pump | ||
| Power | 12V DC | 12V DC |
| Flow | 20 gpm | 20 gpm |
| Duty cycle | 30 min on | 30 min on |
| Current | 34 A | 19 A |
| Max pressure | 12 psi | 16 psi |
| Max head | 15 ft | 37 ft |
| Suction lift | - | 8 ft |
| Mount | Bung | Bung |
| Safety | ||
| UL listed | Yes | Yes |
| Explosion-proof motor | Yes | Yes |
| Gasoline approved | Yes | Yes |
| In the box | ||
| Meter | No | Yes |
| Nozzle | Automatic | Manual |
| Hose | 14 ft | 12 ft |
| Filter | Yes | No |
| Suction pipe | Yes | Yes |
| Power cable | 18 ft | 18 ft |
| Build | ||
| Weight | 19 lb | 44.1 lb |
| Warranty | Limited lifetime | Limited lifetime |