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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.

  • Briggs & Stratton 30728 Storm Responder
  • Predator 72920
  • Model 30728 Storm Responder
    Model 30728 Storm Responder

    Briggs & Stratton 6,250W Gas Generator

    6250W
    Running
    0 dB
    Noise
    View details
  • Model 72920
    Model 72920

    Predator 5,500W Gas Generator

    5500W
    Running
    73.5 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 @50%
h
Running watts by fuel
Shows how output changes across gasoline/propane/natural gas (when available).
Generator Specifications Comparison
SpecificationBriggs & Stratton 30728 Storm ResponderPredator 72920
General
Product type
Generator
Generator
Fuel
Gasoline
Gasoline
InverterNoNo
Parallel capableNoNo
RV readyNoNo
Running watts
Winner: Winner: 6250 W
5500 W
Starting watts
Winner: Winner: 8500 W
6500 W
Noise (lower limit)
0 dB
Winner: Winner: 73.5 dB
Weight
210 lbs
Winner: Winner: 165 lbs
Run time @50% load
11 h
Winner: Winner: 14.5 h
Run time @25% load
Not available—
Not available—
Fuel tank
7.5 gal
Not available—
Fuel gaugeYesNo
Approx. dimensions (L × W × H)
28 x 27 x 28
26-7/8 x 22 x 22-3/4
Electrical
Voltage (AC)
120/240
120/240V
Voltage (DC)
Not available—
Not available—
GFCI outletsYesNo
Covered outletsYesNo
Automatic Voltage RegulationYesNo
THD
Not available—
Not available—
Engine
Engine
Briggs & Stratton®
Not available—
Alternator
Not available—
Not available—
Starting system
Recoil
Not available—
Warranty
Warranty
2 years
Not available—
Power by fuel
GasolineNot available—Not available—
Running watts
6250 W
Not available—
Starting watts
8500 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
11 h
Not available—
Run time @25% load
Not available—
Not available—
Other
Data center
Not available—
Not available—
Indicators
true
Not available—
Compliance
ANSI/PGMA G300-2018
Not available—
Security
Not available—
Not available—
Spark arrestorYesNo
Neutral
true
Not available—
UPC
11675307288
Not available—
Core / High-priority specs
Running Watts (Gasoline)
6250
Not available—
Starting Watts (Gasoline)
8500
Not available—
Runtime @ 50% Load (Gasoline)
11
Not available—
AC Outlet Types
2x Duplex 120V 20A (5-20R); 1x 120/240V 30A (L14-30R)
Not available—
Electrical & power
Frequency
60
Not available—
Engine & construction
Engine Type
1850 Series™ OHV Engine
Not available—
Engine Displacement
420
301
Runtime & fuel system
Runtime @ 50% Load (Gasoline)
11
Not available—
Controls & display
Display Type
StatStation™ Digital Display
Not available—
Idle Control System
No
Not available—
Safety & compliance
Overload Protection System
Low oil and overload protection; CO monitoring
Not available—
Low Oil ProtectionYesYes
Carbon Monoxide MonitoringYesYes
Included equipment
Mobility Components
10" Never Go Flat Wheels
Not available—
Starting Components
Recoil
Not available—
Documentation
operator's manual or illustrated parts list
Not available—
Included Accessories
Extension cord and wheel kit
Not available—
Warranty & identification
Residential Warranty
2
Not available—
Commercial Warranty
0.25
Not available—
Part Number
030728
Not available—
Additional specs
Summary
The Briggs & Stratton 30728 Storm Responder is a 6250-watt gasoline generator built for homeowners and job sites that need sustained power for essential appliances and tools. With 8500 peak watts, it can start large loads like air compressors and refrigerators that draw high inrush current. The 7.5-gallon fuel tank delivers 11 hours of runtime at half load, meaning users can run the unit through a full workday or overnight without refueling. This is a stationary-leaning portable unit, not a grab-and-go machine.
The PREDATOR® 6500 Watt Portable Generator is designed for home backup during emergencies and powering tools at jobsites. It features a 301cc gas engine, GFCI outlets, and CO SECURE® carbon monoxide shutdown for safety.
  • Most Powerful
    Briggs & Stratton 30728 Storm Responder
    6250W running
  • Quietest
    Predator 72920
    73.5 dB
  • Longest Runtime
    Predator 72920
    14.5h at 50% load
Where to buy
Prices can change. We update these automatically.
Briggs & Stratton 30728 Storm Responder
Store links
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Predator 72920
Store links
No links yet.
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