The B-KER2® Jar is molded of strong, durable 1/4” thick acrylic

Its square shape provides thorough mixing action and in many cases accurately duplicates actual plant conditions. The jar comes complete with a sampling valve. It is compatible with two, four and six paddle jartesters, as well as most other stirrers. The jars are used to draw the jartest samples with a minimum of disturbance to the settling floc, it has a sampling port conveniently located at the 10 cm settling-distance level. There is no need to raise JarTester paddles.