Dual monitoring of pH and ORP with a large LED display and control of either pH or ORP. Highly accurate. Digital pH-ORP controller with large size LED display for easy reading. High input impedance avoid measuri...
*Please note: liverock is shipped once a week on Wednesdays (for delivery on Fridays). Orders for delivery in the same week must be placed by Monday before 3PM PST. All orders receive after 3PM PST on Monday will be shipped th...
Captive Purity represents the highest quality in reverse osmosis technology. Captive Purity Reverse Osmosis Systems meet stringent standards and far exceeds the quality of systems from other manufacturers. A wide variety of option...
The Captive Purity Refractometer is an incredibly accurate and easy to use device that eliminates the confusion associated with inexpensive hydrometers. Just place a couple of drops of water on the prism and hold to the light. Rea...
Captive Purity Drinking water kit with 3 gallon storage tank for RO and RO/DI systems The Captive Purity Drinking water kit allows you to easily convert your RO or RO/DI system in to an under-the-sink drinking water system. N...