The Whirlpool 4378411 universal inline water filter fits any standard 1/4-inch water line and improves the taste and quality of water and ice. This filter reduces chlorine, dirt, rust, and protects your appliances and beverage equipment from limescale build up and the harmful effects of hard water. Does your water have a poor taste or odor? Enjoy cleaner, healthier drinking water and ice using a universal inline filter that works for any application.