Best Selling Products

Made in the USA - Canada’s Best-Selling Color Changing DI Resin.  Fills One 10" DI CartridgeShips in mylar bag Experience unmatched confidence wit...

  What is the difference between regular and HC German GFO? The main difference is that HC is roughly 1.5 times more effective at removing P...

Carbon block cartridge 10" - 0.5uM Coconut shell activated carbon NSF certified Fits all industry 10" RO and RODI un...

Carbon block cartridge 10" - 1uM Coconut shell activated carbon NSF certified Fits all industry 10" RO and RODI units

REFILL KIT FOR HI772   Get accurate results for your saltwater aquarium with our simple handheld colorimeter.   Our alkalinity c...

SOLD BY THE POUND pH balanced Comes in pelleted format Minimal phosphate levels Huge surface area It is not acid-washed, so it does not l...

Refill Kit for Hanna Instruments PO4 Checker - pack of 25

Hanna Instrument Phosphorus Ultra Low Range Reagents - HI736 (25 units)

Refill Kit for Hanna Instruments Checker Marine Alkalinity Colorimeter

Specially formulated for the use with reverse osmosis water Red Sea is please to announce the addition of an innovative new salt formula designed t...

Contains 3x 2-month reagent kits  (based on the default testing schedule of 4-Alk/2-Ca/2-Mg per day).  The 2month reagent kit has at least 240 alka...

Red Sea NO3:PO4-X Contains a unique complex of carbons that are used by nutrient-reducing bacteria. Each carbon is utilized by different strains of...

IC-GEL™ is a cyanoacrylate paste that is extremely thick which comes in an applicator tube like toothpaste. It has the same bonding and curing t...

Overview: Complex system of non-pathogenic aerobic and anaerobic microbes, as well as natural enzymes, specifically formulated to establish biolog...

Salifert Calcium Test Kit Our calcium test is capable in resolving the calcium content in 10 mg/L steps. The color change is sharp and facilitates ...

HI782-25 Marine Nitrate High Range Reagents are for use with the HI782 Marine Nitrate High Range Checker HC. They are manufactured in our state...