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The Peterson inline one-way pop-off valve prevents air from entering the engine when crankcase vacuum valve seals fail. Opening at approximately 2 psi, it relieves crankcase pressure and protects scavenged systems. Fitted with -12AN male connections for plumbing to an oil tank or catch can, this compact valve provides a simple, serviceable safeguard for high-performance oiling setups.
Peterson Fluid Systems One Way Pop Off Inline -12AN
