Colorimetric method — nitrate reacts with reagent to produce a pink/violet tint

1/4" quick-connect fittings (pre-installed)

The best way to store the probe is with the probe's cap filled with storage solution and the cap tightened to prevent leakage

lot number and expiration date

NU Aqua 8-Stage Countertop Replacement Filter with Remineralization HI740318 Colorimetric method — nitrate reactsRestore peak performance and enjoy healthier, mineral rich water with the NU Aqua 8 Stage Countertop Replacement Filter. This advanced multi stage cartridge doesn't just remove contaminantsit remineralizes your water, adding back essential minerals that your body needs for optimal hydration and health. Beyond Filtration: Complete Water Revitalization Most countertop filters stop at removing contaminants, leaving you with clean but mineral depleted