The Hydroflow HS38 is the domestic model for the average two to four-bedroom sized home, up to 280 sq m (3000 Sq ft). Fitting one HS38 protects the boiler, (hot water tank) pipes, pumps, and appliances (dishwasher, washer etc. from lime-scale build-up and removes the existing lime-scale too. The HS38 fits around the pipe, is suitable for all types of pipe material, and works independent of flow rate. This model also protects light commercial appliances like solar hot water panels, ice making machines, etc. It also makes limescale-stained taps, sinks and bathtubs easier to clean.

The HS38 fits pipes up to 38 mm (1 1/2")