tray distillation column With 24 Nutter SVG v-grid trays, manufactured of 14 Ga. 304L SS. V-Grids are 2.5" SVG with 500 opening (288 per tray) Hardware and bolting on trays are 304 SS V-Grids are 2.5" SVG with 500 opening (288 per tray) Hardware and bolting on trays are 304 SS Tray spacing is 28", single pass each tray Pressure at trays is 59-62 psi (on Isopropyl alcohol) Construction is 11 courses with welded dish bottom and top heads Top head is 0.375" thick, bottom head is 0.625" thick,