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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.

  • Genmax GM3500iAED
  • Predator 72899
  • Model GM3500iAED
    Model GM3500iAED

    Genmax 3,200W Dual-Fuel Generator

    3200W
    Running
    62 dB
    Noise
    View details
  • Model 72899
    Model 72899

    Predator 3,000W Gas Generator

    3000W
    Running
    56 dB
    Noise
    View details
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 @25%
h
Running watts by fuel
Shows how output changes across gasoline/propane/natural gas (when available).
Generator Specifications Comparison
SpecificationGenmax GM3500iAEDPredator 72899
General
Product type
Generator
Generator
Fuel
Dual-Fuel
Gasoline
InverterYesYes
Parallel capableYesNo
RV readyNoNo
Running watts
Winner: Winner: 3200 W
3000 W
Starting watts
Winner: Winner: 3500 W
Winner: Winner: 3500 W
Noise (lower limit)
62 dB
Winner: Winner: 56 dB
Weight
Winner: Winner: 56.2 lbs
102 lbs
Run time @50% load
Not available—
Not available—
Run time @25% load
9 h
Winner: Winner: 11 h
Fuel tank
1.7 gal
Not available—
Fuel gaugeYesNo
Approx. dimensions (L × W × H)
20.9 x 12.2 x 19.7
22.75 x 17.3 x 20
Electrical
Voltage (AC)
120
120V
Voltage (DC)
5
Not available—
GFCI outletsNoNo
Covered outletsYesNo
Automatic Voltage RegulationYesNo
THD
≤3% %
Not available—
Engine
Engine
145 cc OHV 4-stroke
Not available—
Alternator
Not available—
Not available—
Starting system
Recoil, Electric, Remote
Not available—
Warranty
Warranty
1 years
Not available—
Power by fuel
GasolineNot available—Not available—
Running watts
3200 W
Not available—
Starting watts
3500 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
Not available—
Not available—
Run time @25% load
8 h
Not available—
PropaneNot available—Not available—
Running watts
2800 W
Not available—
Starting watts
3100 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
Not available—
Not available—
Run time @25% load
16 h
Not available—
Other
Data center
Not available—
Not available—
Indicators
true
Not available—
Compliance
EPA, ANSI/PGMA G300-2023
Not available—
Security
Not available—
Not available—
Spark arrestorYesNo
Neutral
true
Not available—
UPC
713424639021
Not available—
Core / High-priority specs
Running Watts (Gasoline)
3200
Not available—
Running Watts (Propane)
2800
Not available—
Starting Watts (Gasoline)
3500
Not available—
Starting Watts (Propane)
3100
Not available—
Runtime @ 25% Load (Gasoline)
8
Not available—
Runtime @ 25% Load (Propane)
16
Not available—
AC Outlet Types
1x Duplex 120V 20A (5-20R) 1x 120V 30A (L5-30R)
Not available—
Electrical & power
Frequency
60
Not available—
Engine & construction
Engine Type
OHV 4-stroke
Not available—
Engine Displacement
145
212
Engine Oil Type
10W-30
Not available—
Runtime & fuel system
Runtime @ 25% Load (Gasoline)
8
Not available—
Safety & compliance
Low Oil ProtectionYesYes
Carbon Monoxide MonitoringYesNo
Included equipment
Included Accessories
Funnel, tool kit, key fob, propane hose, RV adapter, and battery
Not available—
Additional specs
Summary
The Genmax GM3500iAED is a 3,200-watt dual-fuel inverter generator that runs on gasoline or propane. At 56.2 lbs, it handles essential household loads like refrigerators and small power tools while remaining portable enough for camping or job sites. The 62 dB noise level keeps it residential-friendly.
The Predator 72899 is a 3500 Watt Super Quiet Inverter Generator designed for efficient and quiet operation, suitable for various applications including RVs.
  • Most Powerful
    Genmax GM3500iAED
    3200W running
  • Quietest
    Predator 72899
    56 dB
  • Longest Runtime
    h at 50% load
Where to buy
Prices can change. We update these automatically.
Genmax GM3500iAED
Store links
No links yet.
Predator 72899
Store links
No links yet.
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