Nutrafin Nitrate Reagent #3 Refill - 10.5 ml

Nutrafin Nitrate reagent #3 refill is for use with Nutrafin’s Nitrate Test (0.0-110.0 mg/L). Nitrate should be tested on a regular basis as a measure of pollution in the aquarium and to determine if a water change is necessary.
Format : 10.5 mL (0.35 fl oz).