304 Stainless Steel Filter Element Material: 304 stainless steel for durability and longlasting performance Rust resistance: designed to withstand rust, providing reliable filtration for your heater system Heater Prefilter Purposebuilt for heater systems: effectively removes sediment, rust, and other impurities Protection and lifespan: by removing these particles, it helps protect your heater and extend its lifespan, supporting performance For Heater System Compatibility and fit: tailored to fit heater systems , ensuring compatibility and performance Clean water supply: efficiently filters out impurities to provide clean and safe water for your heater system Use scenarios Residential hot water or boiler system: install on the incoming water line to protect the water heater from sediment and rust, helping extend service life Hydronic heating systems: suitable for boilers or radiant floor heating to prevent debris buildup and protect pumps and heat exchangers Small commercial heater systems: used on incoming supply to maintain efficiency and reduce maintenance by removing particulates before they reach the heater Notes Purpose: designed to improve filtration performance and protect heater components Compatibility: designed to fit standard heater systems; verify fitment with your equipment before installation