HM Digital (FLM-3) Filter Monitor with Flow Sensor and Volumizer Blue And White (F-41000LN-16) 2.0 - 20 GPM; 1" FPT Test your water nitrate levels

Test your water nitrate levels before installation and every 3-6 months to determine replacement timing based on your specific water chemistry

5" big blue filter housings Compatible Brands Watts

filter clogs

ensuring proper seal alignment

Quick access for cartridge installation

HM Digital (FLM-3) Filter Monitor with Flow Sensor and Volumizer Blue And White (F-41000LN-16) 2.0 - 20 GPM; 1" FPT Test your water nitrate levelsHM Digital HM Digital FLM 3 Filter Monitor with Flow Sensor and Volumizer Real time flow tracking and total volume monitoring for RO and DI filtration systems Digital LCD Display LPM GPM Tracking Programmable Alarm Under Sink Compatible The HM Digital FLM 3 gives you visibility into exactly how much water has passed through your reverse osmosis or deionization system. Mount it under the sink or on the countertop to track flow rates in real time and