Nitrite 0-25 ppm, Nitrate 0-500 ppm Two Pad Test Strip [Vial of 50 Strips]
The Nitrite Nitrate test strip is used to test for Nitrites & Nitrates in solution simultaneously. The Nitrate pad detects Nitrate in solution at 10, 25, 50, 100, 250, & 500ppm. The Nitrite pad detects Nitrite in solution at 1, 5, 10, & 25ppm.