HM Digital HydroMaster Continuous pH/EC/TDs/Temperature Monitor 000 Grains Versilon Replacement Pump Tube 2

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

For S40Q units

and single cartridge filter

Ensure safe

HM Digital HydroMaster Continuous pH/EC/TDs/Temperature Monitor 000 Grains Versilon Replacement Pump Tube 2The 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