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Hygger Aquarium Air Stone, Fish Tank Bubbler, Nano Furnace Flue Round Stone Disk, Small Bubbles and High Dissolved Oxygen for Hydroponics, with 2 Suction Cups, 1 Adjust Valve, 1 Check Valve (2 Inch)Our white Nano disc air stone is made of high-quality white alundum & brown alumina, fired at a high temperature of 1300 degrees Celsius.The air diffuser area is very smooth and exquisite, not like other poor quality air stone touch rough.This kind of air bubble stone has the following features:· Su...$17.99$29.99 -
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Hygger Aquarium Air Stone Kit, Fish Tank Bubbler, Nano Furnace Flue Round Air Stone Disk Set, Small Bubbles and Ultra-High Dissolved Oxygen for Hydroponics (4 Inch)Our Nano disc air stone is made of high-quality white alundum & brown alumina, fired at a high temperature of 1300 degrees Celsius.The air diffuser area is very smooth and exquisite, not like other poor quality air stone touch rough.This kind of air bubble stone has the following features:· Super st...$24.99$36.99
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Hach 2745325 Iron Test Strips (Total Dissolved Iron), 0-5 mg/LIn domestic water supplies, iron can do great economic damage by staining laundry and porcelain fixtures and by producing an off taste in beverages. In water supplies used for commercial beverage production, low levels of iron are critical. Hach's Test strips provide the most easily-used method for...$26.25$26.25 -
Test Assured Drinking Water Test Kit with Digital TDS Meter - Easy at-Home EPA Water Test Kit for 10 Water Contaminants and Total Dissolved SolidsTest Assured Complete Water Analysis Test Kit with TDS Water Quality Tester not only includes ALL 10 of our at home water tests but also comes with a digital TDS Meter. This home water testing kit includes all of the following tests: Lead Water Test Kit. Coliform Test Iron Test. Nitrates and Nitri...$44.95$44.95 -
Milwaukee MW600 LED Economy Portable Dissolved Oxygen Meter with 2 Point Manual Calibration, 0.0 - 19.0 mg/L, 0.1 mg/L Resolution, +/-1.5 percent Accuracy, 100 Percent Saturation RangeThe Milwaukee MW600 is a portable dissolved oxygen (DO) meter for educational, aquaculture, water analysis, and environmental analysis applications, with an LCD screen and polarographic probe with 3m cable and screw-on cap membrane. The meter has two-point manual calibration and automatic temperatu...$172.00$172.00 -
Salifert Dissolved Oxygen Test KitSalifert Oxygen Profi-Test Corals and marine fish require very high levels of oxygen concentration because of the low solubility of oxygen in salt water so it is very important to regularly test the level of oxygen present. The Salifert Oxygen Profi-Test is extremely fast, measuring oxygen levels in...$18.99$18.99
