(2) Arrow Tank and Engineering Company Cone Bottom Pressure Tanks- 60 Gallon. S/N's: 13683 and 136854. Nat'l Bd: 10908 and 10909. Carbon steel construction. Inside straight-wall dimensions: 2 ft. 6 in. dia. x 1 ft. 10 in. H. MAWP: 100 psi @ 500 °F. Head radius: 24 in. Shell thickness: 0.250 in. Head thickness: 0.260 in. Cone thickness: 0.250 in. Inlets: (1) 1 in. dia. FNPT, (1) 3 in. dia. flanged port, (1) 8 in. dia. flanged port. Outlets: (1) 4 in. dia. flanged port. Overall dimensions: 3 ft. 2-1/2 in. L x 2 ft. 8 in. W x 7 ft. 4-1/2 in. H.