30 gallon DeDietrich glass lined vacuum receiver. 20" diameter x 20" straight side. Clamped top, welded dished bottom. Internal rated 25/FV @ 150 degrees F. NB# 122. SN# 1154. Built 1991. Mounted on legs with castor wheels. 1" center bottom drain. Fittings top: (1) 1", (2) 2 1/2", (1) 4".