For performing two digestions simultaneously. Consists of two 600 Watt heaters operated by two individual infinite control knobs with variable input from 20 to 100%. The fume manifold of PVC is connected by means of PVC tubing to a water aspirator (not supplied). Includes 8 Ft. 3-wire cord and plug for operation on 110V, 50/60Hz, 11 amp. 10-3/8"W x 18-1/4"D x 16-3/4"H (21284-01)