Continue shopping “Hayward SwimClear C4025 Cartridge Filter Air Relief Tube CX4000Z3” has been added to your cart. Product Price Quantity Total × Hayward SwimClear C4025 Cartridge Filter Air Relief Tube CX4000Z3 $15.01 Hayward SwimClear C4025 Cartridge Filter Air Relief Tube CX4000Z3 quantity $15.01 Cart totals Subtotal $15.01 Shipping Shipping costs will be calculated once you have provided your address. Total $15.01 Proceed to checkout — OR — Calculate shipping Country / region: Select a country / region… United States (US) State / County: City: Postcode / ZIP: Update