API® KH Carbonate Hardness Test Kit — 90 Tests Asynchronous featuring a fiberglass-reinforced plastic binding

featuring a fiberglass-reinforced plastic binding for minimal abrasive wear and a vortex impeller to eliminate clogging and increase torque

non-cross-threading hardware

Length Liner

The EasyPro Eco-Series Tempo Submersible Filter provides light-duty mechanical and biological filtration

API® KH Carbonate Hardness Test Kit — 90 Tests Asynchronous featuring a fiberglass-reinforced plastic bindingAPI KH Carbonate Hardness Test Kits test tap water in fresh or saltwater aquariums for carbonate hardness (KH). Carbonate hardness stabilizes aquarium pH, and can be used to determine proper dosage of pH buffers. Helps monitor water quality and prevent water problems that can harm fish Includes liquid dropper bottle, glass test tube with cap, color chart and instructions For use in fresh and salt water Makes 90 tests Safety Data Sheet Manual