Used 260 sq. ft Lypholizers. Mfg by Stokes in 1988, serial # 73354.2, all SS contact parts complete w/new stoppering system. 13 (48 x 60") removeable SS shelves with 3.5" minimum nominal spacing between shelves. New stoppering system was installed by Stokes in 2000. Chamber info: Stokes NB # 4091, manufactured in 1988. S/N 73354, rated 18 PSI @ 256, flat Head 3/8", shell 1/4". 1 - Control panel 3 - Carlyle compressors (unused, not assembled, in crates) 2 - Stokes Vac pumps model 212-11; 1 - SS vapor valve.