Check the listing for details. Pool R-X Blue Pool Unit 7.5K-20K Gallons 6 Months 331001 - New/Sealed. Condition: New, Made in United States. Listed at 30.00 USD. The Pool R-X Blue Pool Unit is a new and sealed pool equipment and part designed for pools with a capacity of 7.5K-20K gallons. Made by the brand Pool R-X in the United States, this unit is specifically designed to last 6 months. This product is a crucial component for maintaining the cleanliness and functionality of your pool, ensuring a smooth and enjoyable swimming experience for you and your family.The Pool R-X Blue Pool Unit is a new and sealed pool equipment and part designed for pools with a capacity of 7.5K-20K gallons. Made by the brand Pool R-X in the United States, this unit is specifically designed to last 6 months. This product is a crucial component for maintaining the cleanliness and functionality of your pool, ensuring a smooth and enjoyable swimming experience for you and your family.