Used Dual Stokes stainless steel vacuum shelf dryers model 338D-4. Stacked system contains 2 shelf dryers each with single door with (2) 6" sight glasses. Internal rated @ FV with max temp of 200 degrees F. Jacket rated 50 psi. Each dryer contains (5) shelves rated 50 psi @ 650 degrees F. Each shelf is National Board stamped. Shelves measure 24" wide x 36" deep. Unit can be arranged so that each oven is controlled individually.