Jar testers are designed to test the efficiency of flocculation or precipitation reagents on a small scale. Stirring rod shafts can individually be stopped and height can be adjusted while the system is operating. Choose from portable or laboratory testers.

Portable Jar Tester is available in a space saving 4-position model with stirring positions around a central lamp. Set stirring speed mechanically to 20, 40, 50, 100 or 120 rpm, and set time for 1 to 30 minutes. Central lamp makes it easier to observe flocculation process. Portable tester requires 1-L beakers (order separately, 34512-11 6/pk).