This is an O-Z/Gedney EYA300 3" explosion proof seal off. It is factory new. Call if you need a bigger quantity.  It is equal to Crouse Hinds EYS8 and Appleton EYF300.   I also have most other sizes in my store. 

 Check my feedback and buy with confidence.  We have been in business for 20+ years.  As with all my listings, your satisfaction is guaranteed.  I can ship same day ups if the order is received before 3:00 pm central.  Check my store for more fittings or contact me for items not listed.