Fluval's pH Wide Range Test (4.5 - 9.0) measures the general range of pH in fresh or salt water aquariums. By determining whether your water is acidic or alkaline, you can create a natural habitat for your fish & or plants.

Florasol pH7 calibration solution is for pH-meters. A monthly calibration of your equipment is essential to obtain precise results.

Bluelab pH Probe KCI Storage Solution is designed to increase response time & maximize the life of Bluelab pH pens & probes. For best results, use KCI solution to store the pH pen/probe after use & hydrate monthly.

An economical, entry level, micro-sized, portable reverse osmosis system. 0.75 gal per day solution. Includes KDF/carbon pre-filter, 75 GPD membrane, garden hose connector, ¼" shut off valve & pressure gauge.

Bluelab's Conductivity Pen (EC or ppm) measures conductivity & temperature.

High quality solutions formulated for calibrating pH probes. Bluelab® calibration solutions are essential for use with all Bluelab® products.

High quality solutions formulated for calibrating pH probes. Bluelab® calibration solutions are essential for use with all Bluelab® products.

The Hanna HI98107 Waterproof pH Tester is easy-to-use & makes monitoring water quality simple. Features 0.1 resolution with automatic 2 point calibration & temperature compensation in a single, portable, pocket device.

Cyco pH Up raises the total pH value of the made nutrient solution. Recommended pH for most plants is 5.5 to 6.5.

Cyco pH Down lowers the total pH value of the made nutrient solution. This product lowers nutrient pH. Recommended pH for most plants is 5.5 to 6.5.

Luster Leafs Rapitest Moisture Meter instantly indicates when plants need water, how much light plants are receiving and no batteries are required.

Alfred Digital pH/Temperature Water Resistant Tester 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.