HTH 67079 Pool Filter Sand Cleaner and Clarifier, 50 lbsBrand: HTH Color: Clear Features: BENEFITS: Ensures that your sand filter is functioning properly, so you have clean and healthy water in your pool or spa all season long USE: Follow filter manufacturer instructions for filling; For best results, use with other HTH pool care products COMPATIBILITY: Great for use with sand filters in pools and spas, including saltwater systems FEATURES: Medium filter sand; Restores filter efficiency; Pure and perfectly