ET109-002 3/8″ Quick Connect Push-In Inlet Reverse Osmosis Drain Line Adapter Comes with all the fittings and instructions needed for installation Uses standard plumbing fittings to meet code requirements nationwide Resists clogging for life long trouble-free operation Eliminates gurgling noise from RO system No drilling into wet pipes UPC Listed, IPC and NSF tested, ASTM F 409 compliant The ET109-002 series reverse osmosis water filter drain adapter is designed to connect discharge line from an RO filter to the drain. The ET109-002 converts the plumbing of a single sink with garbage disposal to receive the reject water from an under-counter reverse osmosis appliance or a distillation system which has an automatic backwash feature.   The ET109-002 series is most commonly used in condominiums, apartments, and cottages and is preferred way to connect RO system to the drain line. The ET109-002 eliminates gurgling sound and provides a safe and effective way…Read More....