www.waterfilters.net Aquaman demonstrates how to use the new Culligan IC-100. The IC-100 has been updated to use quick connect fittings. In spite of this change it will continue to fit in all situations with some minor adjustments. Watch as Aquaman simplifies this potentially confusing issue. You can continue to use the IC-100 even though it has been updated with new quick connect fittings. The IC-100, also known as the 155070-27, is an inline filter commonly used as an external fridge filter for refrigerators without a built in water filter. It can also be used as a polishing filter for reverse osmosis systems, or as a stand alone under sink water filter feeding a dedicated drinking water faucet.Aquaman is a Water Quality Association Certified Water Specialist. His training and experience have given him a deep understanding of water chemistry and water purification equipment. This enables him to provide scientifically accurate information that you can trust!