Continue shopping “Sta-Rite Posi-Flo II Cartridge Filter Base O-Ring Filter WC9-3 O-239-” has been added to your cart. Product Price Quantity Total × Sta-Rite Posi-Flo II Cartridge Filter Base O-Ring Filter WC9-3 O-239- $9.01 Sta-Rite Posi-Flo II Cartridge Filter Base O-Ring Filter WC9-3 O-239- quantity $9.01 Cart totals Subtotal $9.01 Shipping Shipping costs will be calculated once you have provided your address. Total $9.01 Proceed to checkout — OR — Calculate shipping Country / region: Select a country / region… United States (US) State / County: City: Postcode / ZIP: Update