Mishimoto One-Way Check Valve 3/4" 100psi Anodized Aluminum Viton Seals

Mishimoto One-Way Check Valve — 3/4" • 100 psi • Anodized Aluminum Protect your catch can system with the Mishimoto One-Way Check Valve. Engineered for performance and longevity, this 3/4" valve delivers reliable one-way flow control while guarding engine components from backflow and unwanted pressure spikes. Diameter: 3/4" (standard plumbing fit) Max Pressure: 100 psi — handles high-pressure applications with confidence Housing: Anodized aluminum for corrosion resistance and lightweight durability Seals & Diaphragm: Viton rubber for superior chemical and temperature resistance Serviceable: Fully serviceable design for maintenance and longevity Warranty: Covered by the Mishimoto Lifetime Warranty for peace of mind This check valve allows ample airflow through your PCV/catch can plumbing while preventing backflow and pressure buildup that can damage hoses, fittings, or sensitive engine parts. Ideal for performance and daily-driven vehicles where reliability and chemical resistance matter. Why choose Mishimoto: Precision engineering, high-quality materials, and a lifetime warranty ensure the valve performs under demanding conditions and provides a durable, worry-free installation.