Standard and water-tight boxes for all electrical installation purposes (1908)
H. Krantz Manufacturing Co. · leaf 17
FIBRE BUSHING COVER. 25c 16 KRANTZ TRADE MARK. TYPE N.-WATER-TIGHT OUTLET BOXES. … This type of box is arranged for water-tight installations. A rubber gasketis placed between the box and the cover to make it watertight. They are made in three different sizes and tapped for conduit as shownin diagrams below. DIAGRAM OF OUTLETS.
