Buy Liquid Cartridge Filter Cleaner 1 Ltr from Castle Hot Tubs, your number one supplier of hot tub care and cleaning products.
A powerful cleaner that removes oil, grease and minerals from spa and hot tub filter cartridge
1: Remove the cartridge and rinse off any debris and loose material
2: Place in a clean plastic container large enough to allow complete immersion
3: Add according to instruction into water.
4: Leave to soak for at least 8 hours.
5: Rinse filter off and place filter in a warm place to allow filter to dry.
Always wear rubber gloves and eye protection when using this product