Compare Generators Side-by-Side
Select up to 4 generators to compare specs, power output, noise levels, runtime and more. Your compare URL is shareable.
- Firman P03628
- Predator 72912
Quick charts
Each chart uses its own Y-axis scale (so numbers are comparable within a chart).
Running watts
W
Starting watts
W
Noise
dB
Runtime @50%
h
Running watts by fuel
Shows how output changes across gasoline/propane/natural gas (when available).
| Specification | Firman P03628 | Predator 72912 |
|---|---|---|
| General | ||
| Product type | Generator | Generator |
| Fuel | Gasoline | Gasoline |
| Inverter | No | No |
| Parallel capable | No | No |
| RV ready | Yes | No |
| Running watts | Winner: Winner: 3650 W | 3500 W |
| Starting watts | Winner: Winner: 4550 W | 4375 W |
| Noise (lower limit) | 75 dB | Winner: Winner: 72.5 dB |
| Weight | 119.5 lbs | Winner: Winner: 107 lbs |
| Run time @50% load | 14 h | Winner: Winner: 16 h |
| Run time @25% load | Not available | Not available |
| Fuel tank | 5 gal | Not available |
| Fuel gauge | Yes | No |
| Approx. dimensions (L × W × H) | 23.2 x 21.7 x 21.7 | 23.3 x 18.6 x 19.23 |
| Electrical | ||
| Voltage (AC) | 120 | 120/240V |
| Voltage (DC) | Not available | Not available |
| GFCI outlets | No | No |
| Covered outlets | Yes | No |
| Automatic Voltage Regulation | Yes | No |
| THD | 25 % | Not available |
| Engine | ||
| Engine | Firman Max-Pro Series OHV 4-stroke, cast iron sleeve | Not available |
| Alternator | Not available | Not available |
| Starting system | Recoil, Electric, Remote | Not available |
| Warranty | ||
| Warranty | 3 years | Not available |
| Power by fuel | ||
| Gasoline | Not available | Not available |
| Running watts | 3650 W | Not available |
| Starting watts | 4550 W | Not available |
| Running amps (120V) | Not available | Not available |
| Running amps (240V) | Not available | Not available |
| Peak amps (120V) | Not available | Not available |
| Peak amps (240V) | Not available | Not available |
| Run time @50% load | 14 h | Not available |
| Run time @25% load | Not available | Not available |
| Other | ||
| Data center | Not available | Not available |
| Indicators | true | true |
| Compliance | EPA, ANSI/PGMA G300-2023 | Not available |
| Security | Not available | Not available |
| Spark arrestor | Yes | No |
| Neutral | Floating | Not available |
| UPC | 840876136287 | Not available |
| Core / High-priority specs | ||
| Running Watts (Gasoline) | 3650 | Not available |
| Starting Watts (Gasoline) | 4550 | Not available |
| Runtime @ 50% Load (Gasoline) | 14 | Not available |
| AC Outlet Types | 1x Duplex 120V 20A (5-20R) 1x 120V 30A (TT-30R) 1x 120V 30A (L5-30R) | Not available |
| Electrical & power | ||
| Frequency | 60 | Not available |
| Engine & construction | ||
| Engine Type | OHV 4-stroke | Not available |
| Engine Displacement | 208 | 212 |
| Cylinder Sleeve | Cast iron sleeve | Not available |
| Runtime & fuel system | ||
| Runtime @ 50% Load (Gasoline) | 14 | Not available |
| Safety & compliance | ||
| Overload Protection System | Low oil and overload protection, CO monitoring | Not available |
| Low Oil Protection | Yes | Yes |
| Carbon Monoxide Monitoring | Yes | Yes |
| Included equipment | ||
| Mobility Components | Wheel kit | Not available |
| Included Accessories | Oil, funnel, tool kit, key fob, battery, and wheel kit | Not available |
| Warranty & identification | ||
| Commercial Warranty | 3 | Not available |
| Additional specs | ||
| Summary | The Firman P03628 is a 3,650-watt running generator built on a 208cc OHV 4-stroke engine with cast iron sleeves. This wattage class handles mid-range household loads: refrigerators, window air conditioners, well pumps, and power tools, but not simultaneous heavy-draw appliances like central AC or electric ranges. The 4,550-watt peak gives it startup headroom for motors and compressors. Gasoline fuel means easy refueling at any station, and the 5-gallon tank stretches to 14 hours at half load, reducing refueling frequency on job sites or during extended outages. The RV-ready outlet configuration and remote start make this a practical choice for both emergency backup and recreational use. | The PREDATOR® 4375 Watt Portable Generator is designed for home backup during emergencies and powering tools at jobsites. It features a 212cc engine, CO SECURE® carbon monoxide shutdown for safety, and offers a runtime of up to 16 hours at 50% load. |
- Most PowerfulFirman P036283650W running
- QuietestPredator 7291272.5 dB
- Longest RuntimePredator 7291216h at 50% load
Where to buy
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Firman P03628
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Predator 72912
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