“PoolRx Black Booster Mineral Unit 20K – 30K gallons” has been added to your cart. Continue shopping Product Price Quantity Total × 418-3000 Waterway Extender SCH 40 1 inch Pipe $6.98 418-3000 Waterway Extender SCH 40 1 inch Pipe quantity $6.98 × PoolRx 7.5K-20K Pools Blue Mineral Unit 2-Pack Multi-Pack $81.65 PoolRx 7.5K-20K Pools Blue Mineral Unit 2-Pack Multi-Pack quantity $81.65 × PoolRx Black Booster Mineral Unit 20K - 30K gallons $37.41 PoolRx Black Booster Mineral Unit 20K - 30K gallons quantity $37.41 Cart totals Subtotal $126.04 Shipping Shipping costs will be calculated once you have provided your address. Total $126.04 Proceed to checkout — OR — Calculate shipping Country / region: Select a country / region… United States (US) State / County: City: Postcode / ZIP: Update