WARNING: Culligan can only guarantee the quality of materials, construction and the certification claims of WHR-140 filters manufactured by Culligan, other brands' filters that call out "Culligan WHR-140 compatible" are not affiliated with Culligan and are not NSF, using these filters will VOID the 5 year limited warranty on Culligan Filtered Shower Heads. Each WHR-140 filter cartridge filters sulfur odor, chlorine, and scale for a full 10,000 gallons or 6 months giving softer, cleaner skin and hair. Patented filter media bacteriostatic*, limits passage and growth of bacteria for a cleaner shower experience. System tested and certified by NSF International against ANSI Standard 177. Filter cartridge easily installs in Culligan shower heads. Replacement cartridge for models: WSH-C125, RDSH-C115, HSH-C135, HSH-BN135, ISH-100, ISH-200, ISH-300, S-H200-C, S-H200-BN, S-W100-C, S-W100-BN The Culligan WHR-140 replacement filter cartridge will reduce sulfur odor, chlorine, and scale for softer, cleaner skin, and hair. The filter is easy to install with no tools required, and each filter cartridge lasts 10,000 gallons, or 6 months. This fitler cartridge works with all Culligan filtered shower heads, WSH-C125, WSH-BN125, RDSH-C115, HSH-C135, HSH-BN135, ISH-100, ISH-200C, ISH-300, S-H200-C, S-H200-BN, S-W100-C, S-W100-BN.