Continue shopping “NorthStar EcoStar VS Hayward Pump Union / Diffuser O-ring SPX4000Z1” has been added to your cart. Product Price Quantity Total × NorthStar EcoStar VS Hayward Pump Union / Diffuser O-ring SPX4000Z1 $5.01 NorthStar EcoStar VS Hayward Pump Union / Diffuser O-ring SPX4000Z1 quantity $5.01 Cart totals Subtotal $5.01 Shipping Shipping costs will be calculated once you have provided your address. Total $5.01 Proceed to checkout — OR — Calculate shipping Country / region: Select a country / region… United States (US) State / County: City: Postcode / ZIP: Update