Pool Season Alkalinity Up - 10 Lb. Pouch pool-dimensions_16x38 This is a Hayward HCF348C

This is a Hayward HCF348C 48 inch sand filter with 3 inch connections

000 gallons of water per hour through a 155 square foot Harmsco Filter

This plastic depth marker tile has a Dash (-) Symbol

It includes Water Tech high capacity filter bags that not only capture large and small debris but also sand

Pool Season Alkalinity Up - 10 Lb. Pouch pool-dimensions_16x38 This is a Hayward HCF348CThis is a 10 lb. pouch of Pool Season's Alkalinity Up. This granular 100% Sodium Hydrogen Carbonate product is easy to use. It raises total alkalinity in the pool and acts as a buffer to prevent pH bounce, staining, and corrosion. Alkalinity Up raises total alkalinity in the water and contributes to optimal sanitizer performance. It also helps prevent pH fluctuation.