Upgraded V.B 85/310 Unloader Valve Pressure Washer Pump with Knob, Compatible with PA AR Comet Cat BE General Pump, Replaces VB85 VB310 YU21405 VRT100, 26.4 Gpm 5075 Psi 1/2" NPT — Open-Box

Built for High-Flow Pressure Washer Systems: The V.B 85/310 pressure washer unloader valve is designed for demanding pump setups that require stable pressure control and reliable bypass performance. Rated up to 5075 PSI, 26.4 GPM / 100 L/min, and 194°F / 90°C

1/2" NPT 3-Port Configuration: This unloader valve pressure washer component features 1/2" NPT inlet, outlet, and bypass ports for secure threaded connections. The 3-port design helps regulate water flow and redirect bypass flow when pressure changes in the pressure washer system

Heavy-Duty Brass and Steel Construction: Made with a durable brass valve body, steel components, blue spring, and separate blue adjustment knob. This pressure washer valve is built for high-pressure repair and replacement use while helping support long service performance in demanding working conditions

Wide Replacement Compatibility: This unloader valve pressure washer pump part is compatible with many pressure washer pumps from PA, AR, Comet, Cat Pump, BE, and General Pump. Commonly used as a replacement for V.B 85, V.B 310, YU21405, VRT100, and Cat 7542 unloader valve applications

Confirm Fit Before Purchase: Please verify your pump model, port size, pressure rating, flow requirement, and installation layout before ordering. Professional installation and proper pressure adjustment with a gauge are recommended for stable performance

Upgraded Unloader Valve Pressure Washer Pump with Knob, Replace for VB85 VB310 YU21405 VRT100 Compatible with PA AR Comet /Cat Pump/ BE /General Pump, 26.4 Gpm 5075 Psi 1/2" NPT