This Westbrass sleek round 5-inch diameter with 5-function filtered shower head paired with the solid brass S-shaped 10.5-inch shower arm is the perfect addition to your showering experience with it's generous spray options. The high-pressure shower head offers five spray functions for soothing shoulder-to-shoulder, neck and back massage for tension relief and relaxation. Spray functions are: saturating, massage, saturating & massage, dot massage and saturating with a 1.8 GPM flow rate with adjustable spray face controls regulation of flow. The triple action filtration cartridges in both units remove impurities, heavy metals such as lead, mercury, organic chemicals like hydrogen sulfide and chlorine and other harmful substances from your water while enhancing the water's cleansing abilities by releasing beneficial natural minerals that the human body needs. Filter cartridges should be replaced every six (6) months, 10,000 gallons or if it begins to discolor. SHF Replacement filter unit is compatible with Westbrass models: SCH900F, SHF5700 and SAF and are sold as a two-pack. Replacing the cartridge is quick and easy, just swap the old cartridge with a new one, flush with hot water for one (1) minute, and it’s ready for use. Available in a variety of stylish finishes, this item is sure to complement your existing fixtures. Westbrass Fine Decorative Plumbing since 1935.