General Pump S3 (ZKS3) Safety Relief Valve up to 26.4gpm 10150psi hydrovac-guns-and-high-flow-lances 3/8" Female Outlet / Bypass

3/8" Female Outlet / Bypass

Unloader: Internal (built-in)

Brass construction (rubber cover)

Choose the replacement piston you need and order up to three pistons per pump

General Pump S3 (ZKS3) Safety Relief Valve up to 26.4gpm 10150psi hydrovac-guns-and-high-flow-lances 3/8" Female Outlet / BypassInterpump S3 (ZKS3 GP) safety relief valve. 10,150 psi Maximum Rated Pressure 2. 6 up to 26. 4gpm Flow 1 2" Inlet 284F Max Temperature Discharges to atmosphere. **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.