UltraPro One Way Check Valve

Check Valve - 8AN Male – Stainless Steel Hinge Door with GF-600S Viton® Seal

PART# 253008ERL

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GF-600S Viton® is a registered trademark of DuPont™


Earl's is pleased to release a new one-way check valve that is ideal for use on fuel and oil systems. Now offered with internal stainless steel hinge and GF-600S Viton® seal. The GF-600S Viton® is the highest quality seal material for all types of fuels including diesel & alcohol. The Internal spring releases to full flow at 1 psi (Note: blowing through it will only partially release the hinge). High PSI Rating is 1250 PSI. This product uses a proven military design & provides for a more compact unit over conventional flapper check valves.


  • High Quality Check Valve w/ Stainless Steel Hinge Door – Proven Military Style Design
  • Seal Material: GF-600S Viton® - Peroxide-Curable Polymer Designed to Provide Outstanding Performance
  • Ideal for Use w/ Fuels, Oil, Coolant, Air, Diesel, Methanol & Ethanol
  • Valve Opens Fully at 1 PSI (Note: blowing through it will only partially release the hinge)
  • Maximum Pressure 1250 PSI
  • Body is Anodized Aluminum


Adapter TypeCheck Valve
Body Length1.35"
Diameter.930 in
Emission Code1
FinishAnodized Pewter
Inlet / Outlet Size8 AN MALE
Overall Dimension2.75"
Product TypeCheck Valve
PSI Rating1250
Seal MaterialGF-600S Viton®
Part Number253008ERL


This part is legal for use on Emissions Controlled Vehicles when used in accordance with the manufacturers application guide because it has a California Air Resources Board Executive Order number or is a direct or consolidated replacement part.

The following vehicles are considered Emissions Controlled Vehicles:

  • 1966 and newer U.S. manufactured California Certified vehicles
  • 1968 and newer U.S. manufactured Federally Certified vehicles
  • 1968 and newer Foreign manufactured vehicle

Tech Resources

GF-600S Viton® is a registered trademark of DuPont™
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      *Free Shipping & Handling only offered to the contiguous US on orders over $100.

      Some parts are not legal for use in California or other states with similar regulations.