Pro Hydrion QT-10 Test Strips QT-10V 100 Strips per Vial (not rolls) Description These strips measure the concentration of Quaternary Sanitizers, including n-alkyldimethylbenzyl and/or n-alkyl dimethyl ethyl benzyl ammonium chloride, and Rocall II. Features: 100 Strips per Vial Pre-cut for convenience 1 Vial with chart for 0-400ppm Sanitizer Ranges Chart on vial measures concentrations between 0-400ppm, detecting exhaustion of solutions that should be replaced or avoid using excessive amounts of sanitizing agents. Product Details: Is Discontinued By Manufacturer ‏ : ‎ No Package Dimensions ‏ : ‎ 2.8 x 1 x 0.9 inches; 0.01 Ounces Item model number ‏ : ‎ QT-10V Date First Available ‏ : ‎ May 10, 2018 Manufacturer ‏ : ‎ Micro Essential Labs Best Sellers Rank: #70,984 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #169 in pH Test Strips #169 in pH Test Strips Customer Reviews: 4.4 4.4 out of 5 stars 71 ratings