BB42B, 4 INCH Vertical Pipe Base with Cable Holder
A bronze base for mounting air terminals to vertical pipes or railings up to 4-1/2 in. (11.43 cm) OD. 2-way bolt pressure cable holder fits cables up to 4/0. Stainless steel bolts, nuts and washers. 7 x 6 x 1-7/8 in. (17.8 x 15.2 x 4.8 cm); approximately 46 oz. (1304 g). Use suffix 3/8, 1/2 and 5/8 inch to denote air terminal thread size.