10 3/4 in. OD x 3 ft. 9 3/8 in. long (approx. OAD) SA 106B Carbon Steel, Material of Construction, Shell MAWP 150 FV @ 200 F, MDWP -20 F @ 150/ FV psig, Tube: MAWP 150/FV @ 200 F, MDWP -20 F @ 150/FV psig, Insulated with PVC Plastic Exterior Cladding, Mounted on I-Beam Steel Legs, with Piping and Valve Manifold; Co. No. ME620B.