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 $15.99 Hayward SwimClear C4025 Cartridge Filter Air Relief Tube CX4000Z3 quantity $15.99 Cart totals Subtotal $15.99 Total $15.99 Proceed to checkout — OR — Coupon: