Continue shopping “O-239- Sta-Rite Posi-Flo II Cartridge Filter Base O-Ring Filter WC9-3” has been added to your cart. Product Price Quantity Total × O-239- Sta-Rite Posi-Flo II Cartridge Filter Base O-Ring Filter WC9-3 $8.23 O-239- Sta-Rite Posi-Flo II Cartridge Filter Base O-Ring Filter WC9-3 quantity $8.23 Cart totals Subtotal $8.23 Shipping Shipping costs will be calculated once you have provided your address. Total $8.23 Proceed to checkout — OR — Calculate shipping Country / region: Select a country / region… United States (US) State / County: City: Postcode / ZIP: Update