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253004ERL Earl's UltraPro One Way Check Valve

Check Valve - 4AN Male – Stainless Steel Hinge Door with GF-600S Viton® Seal;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;