Stainless Steel Single Shell Tank with Heat Coil - 550 Gallons. Inside straight-wall dimensions: 5 ft. L x 3 ft. 7 in. W x 4 ft. 2 in. H. Number of coils: 1. Coil dimensions (straight sections): 3/4 in. dia. x 4 ft. 6 in. L. Coil volume: 0.5 gal. Inlets: (1) 5 ft. L x 3 ft. 7 in. W product infeed. Outlets: (1) 1 in. dia. port, (1) 3/4 in. dia. port, (1) 1-1/2 in. dia. drain port. Overall dimensions: 6 ft. 9-1/2 in. L x 3 ft. 10 in. W x 5 ft. 2 in. H.