Canadian Spa hot tub Filter Cleaner. Dissolve the powder in a bucket of warm water and leave your filters to soak overnight. Then rinse with fresh water and leave to dry. Recommended each time you drain and refill your spa.
Ideal for giving your Spa Filters an overnight soaking to restore them after heavy use.
TIP: Using a dose of clarifier (Spa Clear) after cleaning filters will help to re-coat them with a dirt-trapping layer.