Do to the nature of the chemicals used in the reagents, all orders that include Trident NP reagents must ship ground only.
Replacement Reagent Kit for Trident NP (2 Month Supply)
Keep your Trident NP Nitrate and Phosphate Tester running smoothly by replacing your reagents on time. This kit is easy to use with clear instructions for hassle-free reagent changes. These reagents ensure consistent and reliable results, covering a two-month testing period with one nitrate and one phosphate test per day.