WATERAX MINI-STRIKER®
The lightweight 20 lb powerhouse delivering 85 PSI and 80 GPM. Perfect for entry-level slip-ons, initial attack, and tandem pumping operations.
The Little Pump That Gets A Lot Done
The WATERAX MINI-STRIKER® pairs a reliable single-stage pump end with Honda's proven GXH50 4-stroke engine to deliver pressures up to 85 PSI and flow rates up to 80 GPM—all in a package weighing just 20 pounds.
Designed for portability without sacrificing performance, the MINI-STRIKER excels in applications where lightweight, compact equipment is essential. Whether you're building an entry-level slip-on unit, conducting initial attack operations, or need a reliable pump for tandem configurations, the MINI-STRIKER delivers consistent performance you can count on.
The widely-available Honda GXH50 engine ensures easy parts sourcing and simplified maintenance, while CARB and EPA certification means compliance across North America.
Key Features
Ultra-Lightweight
At just 20 lbs (portable) or 19 lbs (vehicle mount), the MINI-STRIKER is easy to transport, deploy, and reposition during operations. Ideal for remote access situations.
Honda Reliability
Powered by the Honda GXH50 4-stroke engine delivering 2.1 HP at 7000 RPM. Proven dependability with widely available parts and straightforward maintenance.
Impressive Performance
Delivers up to 85 PSI maximum pressure and 80 GPM maximum flow. Achieves 196 ft maximum head for elevated applications and sprinkler systems.
Integrated Fuel Tank
Built-in fuel tank for standalone operation without external fuel connections. Compact design keeps everything you need in one portable unit.
Technical Specifications
All specifications verified from official WATERAX documentation. The MINI-STRIKER is available in two configurations: MSTR-P (Portable) with carry handle and base frame, and MSTR-V (Vehicle Mount) with industrial isolator mounts.
Pump Specifications
Pump Performance
Maximum Pressure: 85 PSI (5.9 BAR)
Maximum Flow: 80 GPM (303 L/min)
Maximum Head: 196 ft (60 m)
Pump Type: Single-stage centrifugal
Flow Rates at Pressure
At 25 PSI: 68 GPM (257 L/min)
At 50 PSI: 42 GPM (159 L/min)
At 75 PSI: 12 GPM (45 L/min)
Connections
Intake: 1-1/2" Male NPSH
Discharge: 1-1/2" Male NPSH
Priming: Hand primer compatible
Engine & Compliance
Engine Specifications
Engine: Honda GXH50
Displacement: 49.4 cc
Power Output: 2.1 HP (1.6 kW) @ 7000 RPM
Engine Type: 4-stroke, OHV, single cylinder
Starting System: Recoil starter
Fuel System
Fuel Tank Capacity: 0.81 qt (0.77 L)
Fuel Consumption: 0.24 gal/hr (0.9 L/hr)
Fuel Type: Unleaded gasoline, 86+ octane
Oil Capacity: 0.08 qt (0.1 L)
Compliance & Certification
Emissions: CARB & EPA certified
CE Marking: Yes
Spark Arrestor: USFS approved
Certifications: Meets North American emissions standards
Dimensions & Configurations
MSTR-V (Vehicle Mount)
Length: 12" (30.4 cm)
Width: 10-3/4" (27.3 cm)
Height: 14-7/8" (37.7 cm)
Weight: 19 lbs (8.6 kg)
Configuration: Industrial isolator mounts (M6 x 1.0)
MSTR-P (Portable)
Length: 12-5/8" (32 cm)
Width: 10-3/4" (27.3 cm)
Height: 15-1/2" (39.3 cm)
Weight: 20 lbs (9 kg)
Configuration: Carry handle & base frame
Applications
The MINI-STRIKER's combination of lightweight portability and reliable performance makes it ideal for a variety of wildfire suppression and water management applications.
Entry-Level Slip-On Units
The MSTR-V vehicle-mount configuration with industrial isolator mounts is purpose-built for slip-on installations. At just 19 lbs, it's easy to integrate into utility vehicles, ATVs, and pickup truck units.
Initial Attack Operations
Lightweight enough to carry into remote locations, powerful enough to make a difference. The MINI-STRIKER is suited to modern fire control techniques where small, portable equipment is essential for rapid response.
Tandem Pumping
Use multiple MINI-STRIKER pumps in series to boost pressure for long hose lays, or in parallel to increase flow rates. The 1-1/2" NPSH connections provide easy integration with standard forestry equipment.
Sprinkler Systems
With 196 ft maximum head and reliable pressure output, the MINI-STRIKER powers residential and acreage sprinkler systems for wildfire property protection.
Documents & Resources
Data Sheet
Official WATERAX MINI-STRIKER® specifications, performance curves, and technical drawings.
Owner's Manual
Complete operating instructions, maintenance procedures, assembly diagrams, and safety guidelines.
Quick Guide
Fast reference for setup, priming, operation, and basic troubleshooting in the field.
Honda GXH50 Manual
Honda engine owner's manual covering fuel, oil, maintenance, and specifications for the GXH50.
Shop Parts
Genuine WATERAX replacement parts ensure your MINI-STRIKER® delivers reliable performance season after season. From pump bodies and impellers to suction covers, mechanical seals, and shaft assemblies—we stock the components you need to maintain and service your pump.
Need Help Choosing?
Whether you're building a slip-on unit, setting up property protection, or outfitting a fire department, we can help you select the right pump and accessories for your application.