Electrical Category
Electrical Boxes And Enclosures
Electrical Subcategory
Utility Boxes
Cable Entry
Knockouts for conduit
Knockouts
1/2 - 3/4 in Concentric
MsdsURL
http://hubbellcdn.com/ohwassets/HCI/RACO/Hubbell-RACO_MSDS_for_Steel_Boxes_and_Covers.pdf
Special Features
Nongangable design available from one to six gang configurations in either 2-1/2" or 3-1/2" depths; rugged welded construction; standard 1/2" & 3/4" concentric knockouts; device ears formed inside the box, preventing mortar from getting in