Fill-Rite FR4210H 12V 20 GPM
#2 in 12V DCFull review
For filling big diesel equipment from a truck tank. It pumps 20 gallons a minute for about $70 more than the 15 GPM FR1210H.
Amazon $570.31$570.31
The Fill-Rite FR4210H 12V 20 GPM and the GPI M-180S 12V 18 GPM are evenly matched, rated 3.9 and 3.9. The Fill-Rite FR4210H 12V 20 GPM leads on flow. The GPI M-180S 12V 18 GPM wins on kit. The Fill-Rite FR4210H 12V 20 GPM costs $44.68 less ($570.31 vs $614.99).
GPI M-180S 12V 18 GPM
#4 in 12V DCFull review
A strong all-round 12V kit: faster than the 15 GPM pumps, hands-free filling and theft-resistant. Pick it if you fill several machines a day.
Amazon $614.99$614.99
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 Fill-Rite FR4210H 12V 20 GPM for flow (20 gpm vs 18 gpm).
- Choose the GPI M-180S 12V 18 GPM for kit (auto nozzle, suction pipe, 12 ft hose vs 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 | Fill-Rite FR4210H 12V 20 GPM | GPI M-180S 12V 18 GPM |
|---|---|---|
| Overall rating | 3.9/5 | 3.9/5 |
| Price 20% | 48 $570.31 | 44 $614.99 |
| Flow 25% | 75 20 gpm | 65 18 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% | 30 suction pipe, 12 ft hose | 55 auto nozzle, suction pipe, 12 ft hose |
| Warranty 15% | 100 limited lifetime warranty | 100 limited lifetime warranty |
Specifications
| Fill-Rite FR4210H 12V 20 GPM | GPI M-180S 12V 18 GPM | |
|---|---|---|
| Pump | ||
| Power | 12V DC | 12V DC |
| Flow | 20 gpm | 18 gpm |
| Duty cycle | 30 min on | 30 min on |
| Current | 19 A | 20 A |
| Max pressure | 16 psi | 15 psi |
| Max head | 37 ft | 15 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 | No |
| Nozzle | Manual | Automatic |
| Hose | 12 ft | 12 ft |
| Filter | No | No |
| Suction pipe | Yes | Yes |
| Power cable | 18 ft | 18 ft |
| Build | ||
| Weight | 35 lb | - |
| Warranty | Limited lifetime | Limited lifetime |