WATERAX MINI-STRIKER® MSTR-P is a lightweight, portable high-pressure fire pump pairing a single-stage centrifugal pump end with a Honda GXH50 4-stroke engine. Built for wildland, initial-attack, and slip-on applications.

The WATERAX MINI-STRIKER® MSTR-P pairs a single-stage centrifugal pump end with a Honda GXH50 2.5 HP 4-stroke engine to deliver portable, reliable performance for wildland and initial-attack operations.

Key Performance

• Max pressure: 85 PSI (5.9 BAR)
• Max flow: 80 US GPM (303 L/min)
• Max head: 196 ft (60 m)

Engine & Pump

• Engine: Honda GXH50, 2.5 HP, 4-stroke
• Pump type: Single-stage centrifugal, direct drive
• Starting: Recoil

Connections & Build

• Inlet: 1-1/2″ male NPSH
• Outlet: 1-1/2″ male NPSH
• Portability: Approx. 20 lb (9 kg) with top carry handle
• Base: Polyethylene base with rubber mounts (vibration reduction)

Applications

• Wildland/forestry and initial-attack operations
• Entry-level slip-on units and remote terrain use
• Sprinkler operations and tandem pumping over distance

Specifications

Documents & Downloads

• Official WATERAX Product Page — MINI-STRIKER® MSTR-P
• MINI-STRIKER® Data Sheet (PDF)
• MINI-STRIKER® Specification Document (PDF)
• MINI-STRIKER® Owner’s Manual (PDF, Rev. 4, 05/2024)
• Honda GXH50 Engine Manual (PDF)
• WATERAX Portable Pumps Product Guide (PDF)