Cleaner, clearer, better tasting water for the whole house. Fits 3/4" waterline. Built-in by-pass and shut-off valve. Includes automatic pressure release valve, T01 (1653-1097) single pack cartridge, on-off-bypass valve-in-head design, multipurpose wrench, and installation hardware. Includes cartridge and tank wrench. Replacement OW2 wrench. Replacement O-ring OK25 (1653-0842). 3 months or 15,000 gallon average cartridge life. 5 GPM flow rate. 5 micron rating.