Peterson Fluid Systems pfs08-0452

This Peterson one‑way breather vacuum valve ships without a weld‑in bung and includes a filter element for crankcase ventilation. The pop‑off valve opens at 2 psi to prevent pressurization from forcing air into the engine, offering a straightforward solution for engines using crankcase vacuum valves while keeping contaminants out via the supplied filter.

Peterson Fluid Systems Breather 1-Way Vac No Bung