Spa Care Instant Filter Klenz 500MLSpa Care Instant Filter Klenz quickly removes debris, oils, body fats and dirt utilising a unique No Soak formula. This product is suitable for use with all cartridge filters and should be used on a weekly basis. DIRECTIONS FOR USE: 1. Wear protective gloves and use outdoors well ventilated area. Avoid use on windy days. 2. Remove filter s from the filter compartment. 3. Rinse the filter s with fresh water, a hose pipe is ideal to remove loose