Installed a RO Water Filtration System with water to sink mount dispenser, refrigerator water and ice maker. Needed two valves and a T- connector to complete the job. This package of 20 items cost less than half of what the local big box stores wanted for just the three parts required. These connectors work as well as the ones which came with the RO System. After 48 hours .. no leaks, and no failures. Success...!