Maximum Horsepower: 5hp

General Pump - Interpump 51 series TT9091 triplex pressure wash pump

An adapter is included to fit 14mm and 15mm M22 fittings

If the hole is on the arm opposite the pump outlet near the brass unloader valve you have the EZ pump

5 nozzle equivalent)

Mecline VHP39 Unloader Valve 10.5gpm 5650psi gas-engines Maximum Horsepower: 5hpMecline VHP 39 unloader valve. Maximum Rated Pressure: 5650psi 10. 5 gpm 3 8" Inlet Outlet Bypass 90C 195F max temperature **Caution** Unloader valves are one of the most important safety devices on a pressure washer system. Failure to install and set the unloader properly could result in a very dangerous situation causing severe damage to the pump and possibly the operator. Professional installation is required.