Multi-Stage Universal Shower Filter System

Thread specification: 1/2-inch BSP/NPT (matches UK shower arm and hose standards). Mass: 320 g. Maximum throughput: 25,000 litres (typical replacement window: 6–12 months per UK Water Regulations Advisory Scheme usage guidelines). Housing: Food-grade, BPA-free ABS; integrated stainless steel mesh for upstream particulate screening. Filtration logic follows a deliberate progression: first, mechanical retention of rust, silt, and debris via stainless steel mesh; second, adsorption of chlorine, THMs, and taste/odour compounds via high-iodine-number activated carbon; third, secondary polishing using complementary media to reduce residual cloudiness and improve clarity. Verified chlorine reduction up to 99% under representative UK flow rates (7–10 L/min) and chlorine concentrations. Also limits limescale nucleation on internal surfaces of showerheads — extending functional lifespan and reducing descaling frequency. Output water exhibits improved smoothness, neutrality, and compatibility with sensitive skin and colour-treated hair. Suited to all UK residential settings — including period properties with older galvanised pipes (prone to rust), new builds with high-pressure systems, and rented accommodations requiring non-invasive upgrades. Backed by real-world feedback from users across Greater London, Leeds, and Belfast.