Patterson Kelley Lab mixer with enclosure-Model Blend Master. Comes with 3- S/S shells. and yoke style carrier. r , serial number C467124 . Max Density rate: 200#/CF Capacity. Yoke STA/1 QTPL,. 110 V - 60Hz power reqd , ODP. Dimensions 2.8ft L x 1.35ft H x 1.89ft W.