Note: The prefilter is installed on the coldwater inlet of the water heater. It filters and purifies the incoming water to protect the water heater. Key benefits Filters sediment, red worms, algae and other impurities to provide extra protection for washing machines, smart toilets, and other appliances connected to the coldwater supply. Helps prevent scale and blockages in the water heater by improving water quality before heating, contributing to longer heater life and more reliable hot water. How it works Water enters through the prefilter on the coldwater line, reducing particles before they reach the inner tank. The water heater then heats the cold water in the inner tank. If the incoming water quality is poor and contains sediment or particles, longterm heating can lead to scale buildup, which can block the system, damage the heater, and affect shower performance. Why this matters Protects essential home appliances and improves overall water system performance. Simple installation on the coldwater inlet with easy maintenance and filter replacement; compact and unobtrusive in most setups. Use scenarios Scenario 1: A home with visible sediment or frequent scale issues in hot water installs this prefilter to reduce sediment entering the heater and downstream outlets. Scenario 2: Households with multiple connected appliances (washing machines, smart toilets) gain added protection from impurities in the supply water. Scenario 3: Homes with hard water or aging plumbing use this prefilter to minimize scale formation, helping to extend the life of the water heater and maintain shower performance.