HM Digital HydroMaster Continuous pH/EC/TDs/Temperature Monitor 000 Grains For S40Q units

For S40Q units

and single cartridge filter

Versilon Replacement Pump Tube 2 for Classic and SVP Pumps These Stenner Versilon Replacement Tubes are size #2

This American-made ice maker tubing is available by the foot or in a 100' coil

HM Digital HydroMaster Continuous pH/EC/TDs/Temperature Monitor 000 Grains For S40Q unitsThe HM Digital HydroMaster continuously monitors pH, EC, and TDS temperature levels. The HM 500 is very accurate and can be calibrated with various buffer solutions, but also features automatic buffer recognition. The HydroMaster also features a rechargeable Lithium Ion battery which is strong enough to power the very bright LCD touch screen which has automatic light detection for low light situations. Highly Accurate pH EC TDS Monitor. The HM 500