Low Prices and Fast Shipping
The PH-80 is an economically priced, reliable pH meter that is ideal for testing applications such as hydroponics & gardening, pools & spas, aquariums & reef tanks, water ionizers, drinking water and more.
TDS Meters For Testing of Total Dissolved Solids in Water. Chose handheld or inline TDS meters. Low prices and fast shipping since 1999.
Handheld PH Meters For Water Testing. Low prices and fast shipping online since 1999.
Precipitators - TDS Demonstrations of Total Dissolved Solids. Low prices and worldwide shipping online since 1999.
Simply enter your Feed Water TDS and RO Water TDS into the boxes above and click "Submit". The percentage of TDS Rejection will be displayed. We normally recommend membrane replacement once you drop below 75%. This may vary in areas with high TDS in the feed water.
See our selection of TDS meters under Water Tests
Starting at $5.99