HM Digital DM-1 Dual TDS Meter 000 Hours The QPA102-1 is very durable

The QPA102-1 is very durable and is rated up to 100 psi

QL7I: Single Head

while retaining healthful minerals such as fluoride

Sterilight Quartz Sleeve (1): QSO-950

HM Digital DM-1 Dual TDS Meter 000 Hours The QPA102-1 is very durableThis water quality tester accurately measures the TDS level in your tap (feed) water and purified (product) water. It enables you to determine just how good or bad your water really is! Use the meter to determine when the reverse osmosis membrane needs replacing. Specifications: Available with 1 4" and or 3 8" quick connect fittings. The DM 1 NF does not come with fittings. Highly efficient and accurate due to its advanced microprocessor technology