Used Kason 72" single deck circular shaker screener, Model K721SS. The Screener has one 18" deep carbon steel section, with one 18" center opening, two8" openings and one 16" x 8" covered oval side discharge on the top. It has one 18" stainless steel deck with funneled 10" bottom opening and " top opening. The unit is mounted on a 36"high carbon steel base.