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Mishimoto 3/4-inch one-way check valve adds protection to catch-can and crankcase ventilation setups by allowing flow in one direction while limiting pressure backflow. The anodized aluminum housing and Viton diaphragm and seals provide chemical resistance and durability; the valve is rated to 100 psi, clearly marked for flow direction and fits standard 3/4-inch lines. It is fully serviceable and covered by Mishimoto's lifetime warranty.
Mishimoto One-Way Check Valve 3/4in Aluminum Fitting - Black
