we attach this "T" to the waste water line leaving the membrane housing

The Catalytic Activated Carbon filter on this page is the what the Water Quality Association suggest for point of use

Connect your 3/8" plumbed RO to your refrigerator/icemaker

1000 hours of continuous use

HM Digital DM-3: In-Line TDS Meter PUMPPARTS we attach this "T" toHM Digital DM 3: Commercial In Line TDS Meter This In Line Dual TDS Monitor is highly efficient and accurate due to its advanced microprocessor technology. Displays TDS levels of the Feed Water and Product Water with electrode probes. Install on industrial systems such as a car washes, window washing, manufacturing, and food processing. This model features digital calibration, low batter indicator, improved accuracy, longer batter life (2 years),