Metacaulk® Pipe Collars are prefabricated for open and closed through-penetration firestop systems using 1 1/2"(38 mm) to 6" (152 mm) plastic pipe. An easy locking tab assures easy installation. The collar design greatly reduces the time and expense that is required to install competitive collars.
Metacaulk® Pipe Collar, Intumescent, For Pipe Size: 4 in, Black