NEW IN STOCK – This Hard To Find Blue M Double Stack Hepa Oven. Each Oven Interior I.D. 21.5″ X 19″ X 19.5″, 662 Deg. F and has GN2 Purge to remove unwanted gases and other impurities. This Double Stack Oven comes with 4 shelves, Blue M #PRO550 Programmer, over temperature protection, strip chart recorder, and Hepa filters. Of course this Blue M Oven will have completed our 30 point refurbishment process and be fully warranteed – Parts & Labor View this quality Blue M Oven for your facility / lab.