API's pH Aquarium Test Strips test a wide range of pH levels from 6.0 to 9.0. Just dip a strip directly into your aquarium, and use the color-coded chart to determine if your water is safe or if read more ››
Aquaforest TestPro Alkalinity is designed to quickly measure Carbonate Hardness(dKH) and Alkalinity(meq /L) in marine water. The recommended Carbonate Hardness level is between 6.5 and 8.0 dKH. This read more ››
The Hanna Marine Alkalinity Checker® measures alkalinity in dKH units, using a fixed wavelength LED and silicon photo detector to provide the accuracy of professional instrumentation at the read more ››
Replacement reagents for the Hanna Marine Alkalinity (dKH) Checker® HC – HI772. These high-quality reagents are manufactured in Hanna's state-of-the-art facility and are clearly marked with the read more ››
The HM Digital PH-80 has proven to be the MOST reliable pH meter in its price range. It has become a favorite in such applications as hydroponics & gardening, pools & spas, aquariums & reef tanks, read more ››
Measures pH and temperature with simultaneous temperature and pH display. Auto-ranging three point calibration with digital fine tuning. Includes 4 pH buffer solution in a sponge embedded in a clear read more ››
Reagent refill for Red Sea Alkalinity PRO Test Kit. Enough reagent for 75 tests. Having reagent refills available, makes the ReaSea PRO line of test kits one of the most affordable high quality test read more ››
Some products, due to weight or size of the item, require additional shipping charges. These items are indicated by the " " symbol.
If you want to know how much your shipping costs will be, just add the item to your shopping cart and your shipping costs will be adjusted to reflect the additional shipping charges. You can then decide if you wish to order the item or not.