Improved Racing High-Flow, Low Cracking Pressure Flapper Check Valve, -4AN Male

A flapper-style check valve that opens at almost no pressure yet holds back over 300 psi in reverse, built to a standard that exceeds most military specifications.

Key Features

• -4AN male connections
• 0.04 PSI cracking pressure
• 300+ psi maximum backflow holding pressure, 1,000+ psi maximum unchecked operating pressure
• FKM rubber seals compatible with most automotive fluids and gases
• 0°F to +302°F (-18°C to +150°C) operating temperature range
• Exceeds most military specification requirements
• Made in the USA