Chlorine Granular Shock Blue Horizons Hot Tub Spa 2 x 5kg (10kg)
5KG Blue Horizon Chlorine granular Shock Granules x 2 = 10kg. Maintain free chlorine level within the ideal range of 1 – 3mg/l. Pre-dissolve this product in a clean contain at a maximum rate of 100g per 10ltrs of clean warm water.