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.

Laboratory Jar Tester is available with four positions with a digital display that shows stirring speed and time. Stirring speed is programmable from 10 to 300 rpm, and time from 1 to 999 minutes or 0 to 99 hours. Featuring an illuminated back panel for enhanced visibility. Laboratory units require standard 1-L beakers (order separately, 34512-11).