R200 OMNIFilter icemaker/refrigerator filters connect to the automatic icemaker water line on your refrigerator helping to produce cleaner, fresher tasting water for ice cubes and beverages. Designed for use on any point of use drinking water appliance including reverse osmosis (RO) systems, distillation systems, coffee and espresso brewers, food service equipment, ice machines, misters, bottle less water coolers, water fountains, refrigerators and other water dispensing devices. Constructed with a polypropylene outer shell the granular activated carbon (GAC) is packed between an internal pre and post filter to reduce the release of carbon fines commonly associated with GAC-style cartridges. Filter Installs on 1/4" copper or plastic tubing and includes 1/4" push-in fittings for fast and easy installation. Works with most brands of refrigerators with ice makers or drinking water dispensers and can be used on chlorinated or non-chlorinated water.