Helps purify shower water to be gentler on your hair, skin, and nails Filtered with a high concentration of 86% KDF-55 (recognized for its water-cleansing properties, AKA clean water’s BFF) that works with Calcium Sulfite to help reduce chlorine & impurities. Doesn’t compromise your shower’s existing water pressure, so you can still enjoy your washtime ritual. Designed to attach to most standard US ½” (1.27cm) shower pipe threads for use with fixed, rain, and handheld shower heads.