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Inlet Size: -6 AN Male Flare Outlet Size: -6 AN Male Flare (9/16"x18), One Way Check Valve with Spring Design Inside Parts, Full Length 56.8MM, Made of Aluminum Alloy
Function：For Positive Seal, Sturdy, Reliable, Anti-Leak, Anti-Backflow, Non-Return CO2 Air Valve That Ensures One Directional Water Flow
Suits Fuel Pressure Systems, Oil Pressure Systems, Transmission Cooling lines, Air Systems, Fuel Cell Breather (With Cracking Spring Removed)
Include：
1xOne Way Check Valve
myron hanewinckel
Reviewed in the United States on March 14, 2025
Quality had a good price thank you
Clarence
Reviewed in the United States on January 9, 2025
Very high cracking pressure not for low pressure vacuum stuff
Lowe
Reviewed in the United States on June 12, 2024
They showed up quick but don't really hold the pressure on my fuel lines.May try a different manufacturer.
Scott
Reviewed in Canada on May 5, 2024
Havent tried yet but arrived as described. Compact size.
beeman
Reviewed in the United States on March 2, 2024
Went to install the check valve, opens but immediately blocks flow in BOTH directions. Took it apart, delivered with no internal spring installed. Terrible quality control. Don't ruin your turbo or engine! I shouldn't have cheaped out on a $10 part.
Ryan neibert
Reviewed in the United States on April 18, 2024
Works good
KW
Reviewed in the United States on September 9, 2023
I worked like it is suppose to
Brad Bolger
Reviewed in Canada on November 2, 2023
Doesn't seem to hold target rail pressure (43.5psi) the bleed down is slower than immediate drop like before. Bleeds down to ~1psi in 3 seconds.Seller is responsive and has offered to troubleshoot the issue.
Brian
Reviewed in the United States on January 28, 2023
It works and hasn’t blown apart yet. So that’s good however it is sticky and sometimes the pressure blows back. It works well enough for my truck to quit stalling out. I have it near the fuel rail so it may not be the best location as requires some pressure to open probably 2psi. I’ll relocate it to the intake side of the fuel filter and see if that stickyness goes away.
Ron Coleman
Reviewed in the United States on August 23, 2022
Worked perfectly. Solved a slow start issue on an LS swap caused by the pressure bleeding off. Cranks right up now. This should flow plenty for street use. I ordered a few extra to keep on hand.
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