This 1/3 hp agitator lid system is mounted on a highhandle easy lift lid. The lid and handle are zinc plated. The Gast air motor guarantees dependability and a long life. A needle type air restrictor valve provides precise speed adjustment to the high volume 4 blade stainless steel propellor. The suction pipe collar accepts up to 1 - 1/4" O.D. pipes and has a set screw for fastening