ET112-002 Drain Line Adapter (DLA) with 3/8-inch Quick Connect Fitting for Reverse Osmosis filter

❤ SIMPLE INSTALLATION: The ET112-002 is designed for connecting discharge 3/8-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 3/8-inch push-in connector accommodates a 3/8-inch OD RO poly tubing. The ET112-002 resists clogging for lifelong operation. The recommended installation of the ET112-002 is vertical.

❤ DRAIN LINE CONNECTION: The ET112-002 enables the connection of the RO water filter to the drain. Installing the ET112-002 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 ET112-002 eliminates gurgling noise from RO system.

❤ DRY OPERATION: The ET112-002 has a locking clip for 3/8-inch quick connect to prevent leaks and accidental disconnection of the tube. The locking clip is fitted around the 3/8-inch quick connect push-in connector.

❤ CERTIFICATION: The ET112-002 is legal to install in any state. It is UPC® (Uniform Plumbing Code) Listed, IPC® (International Plumbing Code), NSF® (National Sanitation Foundation) tested, and ASTM F 409 compliant. These certifications assure that ET112-002 is safe to use. The testing is conducted for every manufactured lot to ensure consistent performance.


The ET112-002 is a reverse osmosis water filter drain line adapter. It is designed to connect discharge 3/8-inch tubing from a RO filter to the drain. The ET112-002 is connected to the sink drainpipe to receive the reject water from an under-counter reverse osmosis appliance or a distillation system. The installation provides a reliable and trouble-free connection of the 3/8-inch discharge water tubing to the drain line.

The ET112-002 is designed for residential and commercial use. The ET112-002 is the preferred way to connect RO system to the drain line. The ET112-002 eliminates gurgling sound and provides a safe and effective way to comply with all local plumbing codes.

The ET112-002 drain adapter is listed by UPC© and tested for compliance with IPC© and NSF© standards.