“4″ Air Blow Check Valve with 1/2″ NPT Cap” has been added to your cart. Continue shopping Remove item Thumbnail image Product Price Quantity Subtotal × 2.5" FKM SEAL KIT FOR YBALL Check Valve 1 kit = 1 gasket + 1 seat $82.60 2.5" FKM SEAL KIT FOR YBALL Check Valve 1 kit = 1 gasket + 1 seat quantity $82.60 × 4" Air Blow Check Valve with 1/2" NPT Cap $315.40 4" Air Blow Check Valve with 1/2" NPT Cap quantity $315.40 Update cart Cart totals Subtotal $397.99 Shipment Enter your address to view shipping options. Calculate shipping Country / region Select a country / region… United States (US) State / County Select an option… AlabamaAlaskaArizonaArkansasCaliforniaColoradoConnecticutDelawareDistrict of ColumbiaFloridaGeorgiaHawaiiIdahoIllinoisIndianaIowaKansasKentuckyLouisianaMaineMarylandMassachusettsMichiganMinnesotaMississippiMissouriMontanaNebraskaNevadaNew HampshireNew JerseyNew MexicoNew YorkNorth CarolinaNorth DakotaOhioOklahomaOregonPennsylvaniaRhode IslandSouth CarolinaSouth DakotaTennesseeTexasUtahVermontVirginiaWashingtonWest VirginiaWisconsinWyomingArmed Forces (AA)Armed Forces (AE)Armed Forces (AP) City: Postcode / ZIP: Update US-MA Tax $24.87 Total $422.87 Proceed to checkout