#7430 Stokes vacuum tray freeze dryers

Model 902-216-220, approximately 220 SF surface area, ( 13 ) 54″ x 48″ stainless steel tiers rated for 15 psi., Vilter model F89645-2 ammonia compressor, Microvac vacuum pump, Imeco chill tower, both dryers controlled from central control box (#7430)