Hot Tub Filter Cleaner – 1 LitreCanadian Spa Hot Tub Filter Cleaner 1 kg Keep your spa water crystal clear by maintaining your filters with our Canadian Spa Filter Cleaner. Specially formulated to deep clean and restore filter performance, this solution removes oils, grease, and other debris that can clog your filters and reduce their effectiveness. Simply mix the cleaner in a bucket of warm water, submerge your filters, and leave them to soak overnight. After soaking, rinse