Sealey Dellonda Universal Filter Cartridge Cleaner Hot Tubs/Spas DL56Easily removes oils and greases from filter cartridges. Reduces the need to change your filter so frequently. All makes and models of hot tubs and pools. MAINTAINS WATER QUALITY Easily removes oils and greases from filter cartridges. INCREASES FILTER LIFESPAN Reduces the need to change your filter so frequently. SUITABLE FOR All makes and models of hot tubs and pools. Specifications Detail Easily removes oils and greases from filter cartridges. Detail