A cost-effective filtration solution, the 20 inch x 4.5 inch string-wound sediment water filter by Tier1 (5 Micron) helps reduce most sediment types from your water supply including sand, rust, dirt and scale. Ideal for use with both residential and commercial applications, and with either city or well water. This filter fits most 20-inch Big Blue water filtration housings. A comparable product may be substituted. Keep your water high quality and virtually sediment free by ordering the 20 inch x 4.5 inch string-wound sediment water filter by Tier1 today!