Used 30 Gallon Pfaudler Glass Lined Pressure Tank. 5015 Glass, Vertical. Approximate 20" diameter x 20" straight side, clamp-on dish top, dished bottom. Internal rated 30 psi at 650 degrees F. Openings top: 4", (2) 2". 2" Center bottom outlet. Mounted on (3) Legs. Serial# E280-0696. National Board#40426. Built 1980.