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4' Modular PVC Coliwasa with Brush (Case of 1)
The uniquely designed top spin bar and bottom valve plate mechanism provides a positive seal for sample retention along with greater control for releasing the sample. The modular design also adds flexibility by enabling the connection of several sections to form a longer sampling unit up to 20 feet (610 cm). To use the Coliwasa, simply turn the bar on the top of the handle, insert slowly into the drum to collect liquid in the column, pull the top handle to seat the bottom valve plate, and spin the top handle closed, trapping the liquid in the sampler. This Coliwasa comes with a 48" long cleaning brush. Dimensions (ID x OD): 1 3/8 x 1 5/8 in (3.5 x 4.12 cm).