Culligan IC-1000 Inline Water Filter System Includes 1000R replacement filter cartridge and filter head. Installs inline and allows simple filter changes via this quick change head design. Easy to install inline for a refrigerator icemaker. Use in a RV for very simple annual filter replacements with very little maintenance. #155785 For better tasting drinking water through your water dispenser or icemaker. Reduces lead, lindane, atrazine, chlorine taste and odor, bad taste and odor, and sediment. Reduces Cryptosporidium and Giardia cysts. NSF International Certified. Comes with a filter head with built-in mounting bracket and compression fittings. Includes installation hardware and instructions.