duct flanges for sale, brand-new and used.

Hi, up for sale is 1 set of small, aluminum, "2 hole" pins. These will fit small holed flanges, like Duct work Etc., and pipe up to 12" on a class 150 flange, or up to 8" on a class 300 flange. These measue 1-1/8" O.D., and will fit holes from 1/4" to 1-1/16" , and are very light weight, but strong.