Culligan HSH-C135 Hand Held Showerheads, Single Unit Hand-Held filtered shower head, meets EPA Water Sense certification standard of maximum 2.0 gallons per minute or less Shower head has anti clog rubber spray nozzles that offer 5 spray settings for added comfort Shower head and filter are easy-to-install, no tools required Includes WHR-140 filter cartridge: WHR-140 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 The 5' metal hose installs on any standard 1/2" threaded shower arm