❤ SIMPLE INSTALLATION: The ET112-001 is designed for connecting discharge 1/4-inch tubing from a reverse osmosis (RO) filter to the drain. Its 3-way repair tee directly connects to the sink drainpipe. Its drain line adapter with a 1/4-inch push-in connector accommodates a 1/4-inch OD RO poly tubing. The ET112-001 resists clogging for lifelong operation. The recommended installation of the ET112-001 is vertical. ❤ DRAIN LINE CONNECTION: The ET112-001 enables the connection of the RO water filter to the drain. Installing the ET112-001 is simple as does not require drilling into wet pipes. It also comes with all the fittings and instructions needed for installation. ❤ QUIET OPERATION: The ET112-001 eliminates gurgling noise from RO system. ❤ DRY OPERATION: The ET112-001 has a locking clip for 1/4-inch quick connect to prevent leaks and accidental disconnection of the tube. The locking clip is fitted around the 1/4-inch quick connect push-in connector. ❤ CERTIFICATION: The ET112-001 is legal to install in any state. It is UPC (Uniform Plumbing Code) and IPC (International Plumbing Code) listed, and ASTM F 409 compliant. These certifications assure that ET112-001 is safe to use. The testing is conducted for every manufactured lot to ensure consistent performance., Manufacturer: AIR GAP INTERNATIONAL