Hanna Checker - Ammonia Size:0.0 to 99.9 ppm as NH₄- The difference is in the

The difference is in the smaller pore size

If second dose is need it should be applied four days after the initial dose

tapered form and molded in handles give it superior strength and durability

far more effective than a few large ones because the aeration is more uniform

Hanna Checker - Ammonia Size:0.0 to 99.9 ppm as NH₄- The difference is in theHanna Checkers are small, handheld colorimeters that provide higher accuracy results than typical chemical test kits. Offering improved technology, these portable colorimeters make measurement hassle free with their simple design and easy to follow instructions. Features at a glance: Easier to use and more accurate than chemical test kits Dedicated to a single parameter Small size, big convenience Ideal for: Aquaculture & Aquariums, Water Quality