Chlorine Test, positive/negative, in Cardboard Box (200 tests).Chlorine reagent OT #1 (RW-1068/gal) 3,800 ml (one gallon).Chlorine reagent OT #1 (RW-1068/qt) 1,000 ml (one quart). The Lamotte Model Series of single test, direct reading colorimeters incorporates design advances that enhance reliability, improve accuracy, and simplify the calibration process, all in a portable, hand-held