Continue shopping “SPX4000Z1 NorthStar EcoStar VS Hayward Pump Union / Diffuser O-ring” has been added to your cart. Product Price Quantity Total × 523439Z Tube Fitting Pentair ChemCheck Water Testing System $27.42 523439Z Tube Fitting Pentair ChemCheck Water Testing System quantity $27.42 × 25563-089-000 For Polaris 360 380 Drive Train Gear Kit 9-100-1132 $22.85 25563-089-000 For Polaris 360 380 Drive Train Gear Kit 9-100-1132 quantity $22.85 × SPX4000Z1 NorthStar EcoStar VS Hayward Pump Union / Diffuser O-ring $5.46 SPX4000Z1 NorthStar EcoStar VS Hayward Pump Union / Diffuser O-ring quantity $5.46 Cart totals Subtotal $55.73 Shipping Shipping costs will be calculated once you have provided your address. Total $55.73 Proceed to checkout — OR — Calculate shipping Country / region: Select a country / region… United States (US) State / County: City: Postcode / ZIP: Update