Nitrite refills (Kusuri)
Each kit includes a plastic acetate card that is simple to match in colour and non-biodegradable foil-sealed tablets.
Ammonia, nitrite, nitrate, ph, and kh are among the water parameters that each kit will test for ten times.
The "one off" range theory really does work like that!
Purchase it once, and you may keep your kit stocked with refill tablets (for 50 tests) or any other necessary components. Of course, we include lots of information on water quality in our kits so that appropriate action can be taken if findings are not as expected.