TS-3A and TSR-3A models are air-powered tube and screw samplers for sampling powders and granules from gravity flow locations. The TS-3A mounts on two sides of the chute while the TSR-3A mounts on one side of the chute. Both feature a 1.5-inch OD stainless steel sample tube with a full-length sample slot opening and an internal stainless steel auger.