Part Number: 8.712-621.0
Cross Reference Part Number(s): 462574, 87126210
Manufacturer Item Number: ZK9
This 8.712-621.0 General Pump K9 flow sensitive unloader eliminates pressure in all lines when the pressure washer trigger gun is released (bypass mode). It features all stainless and brass internal components, with no external moving parts. This K9 unloader valve is rated for use at 5800 PSI, and 2.5 – 13.2 GPM.