Spa Hardness Up outer filter Leave the phones inside and

Leave the phones inside and shoot some hoops in you Hot Tub or Swim Spa

reduces sanitizer decay rates

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This product is an outer filter PMA-R1 (X268546) for select H2X®

Attach the filter to your garden hose and insert it directly into the filter housing with the cartridge removed

Spa Hardness Up outer filter Leave the phones inside andMaster Clear Spa Hardness Up Increases Water Hardness To Help Prevent Corrosion and Staining. Master Clear Spa Hardness Up 32 oz Liquid Hardness Increaser Raises the Calcium Hardness level in your spa water. The ideal total hardness level in your spa or pool should be between 200 & 400 ppm. Spa Hardness Up is pre dissolved as a liquid for easier dispersal in your spa & quicker absorption. Water hardness will also decrease brittle plumbing & jets,