“O-239- Sta-Rite Posi-Flo II Cartridge Filter Base O-Ring Filter WC9-3” has been added to your cart. Continue shopping Product Price Quantity Total × O-239- Sta-Rite Posi-Flo II Cartridge Filter Base O-Ring Filter WC9-3 $7.77 O-239- Sta-Rite Posi-Flo II Cartridge Filter Base O-Ring Filter WC9-3 quantity $15.54 × R-0001-C Taylor Dropper Bottle 2 oz DPD Reagent #1 $11.43 R-0001-C Taylor Dropper Bottle 2 oz DPD Reagent #1 quantity $11.43 Cart totals Subtotal $26.97 Shipping Shipping costs will be calculated once you have provided your address. Total $26.97 Proceed to checkout — OR — Calculate shipping Country / region: Select a country / region… United States (US) State / County: City: Postcode / ZIP: Update