Profile: Colonial Scientific, Inc. produces casework, chemicals, wastewater supplies and educational materials. Our lab products include air monitors, apparel, benchtop protectors, applicators, evaporators, fluorometers and humidity chambers. Aggregate drum washers are used to remove clay and other particles from aggregate samples, by gently agitating the specimen in the revolving drum until all particles are washed and separated, and the overflow water runs clear. Our lab accessories range from kimwipes, drying racks, bench coats, & alconox, to transfer pipettes. Ergonomic backrest with lumbar support has a plastic protective panel on the back and edges, which is durable and resistant to stains, scuffs, scratches and cracking.