Ideal for use with chlorinated municipal water, the W20CLA American Plumber whole house water filter cartridge helps to significantly improve sediment, rust and corrosion from the water in your home. A genuine OE part that fits into numerous American Plumber filtration systems, in addition to most standard size water filtration system housings. Offered here in an economically-priced two pack. Get the affordable replacement filters you need to ensure great water in your home by ordering this package of W20CLA American Plumber whole house sediment water filter cartridges from us today!