A.O. Smith AO-WH-PREL Single-Stage 4-GPM Mechanical Filtration Whole House Water Filtration System

The A. O. Smith Heavy-Duty Household Water Filtration System reduces sand, sediment and rust from your main water supply. Longer lasting appliances- whole house filter system designed to reduce sediment from every tap The included reminder timer tells you when it is time to change your filters while the built-in pressure relief button allows for easier filter changes Whole house filter system can be used as a stand-alone system or with additional A. O. Smith filtration systems Certified to reduce sediment, scale, dirt and rust in your water, appliances and plumbing fixtures Universal 4.5-in replacement filter cartridges sold separately (AO-WH-PREL-RP, AO-WH-PREL-RPP, AO-WH-PREL-RCP, AO-WH-PREL-R, AO-WH-PREL-RC) System is NSF Certified to Standards 42 Includes filter housing, housing wrench, reminder timer and all parts necessary for installation Perfect for a household size of 4+ people Limited 1-year warranty