EZ Path Series 33NEZ Smoke & Acoustical Pathway is a pathway device designed to allow cables to penetrate nonfire-rated walls, floors and ceilings without the need for smoke sealing. This device features a built-in smoke sealing system that automatically adjusts to the amount of cables installed. Once installed in a barrier, cables can be easily added or removed at any time without the need to remove or reinstall caulking materials. Its octagonal profile allows a maximum number of cables to be installed in a relatively small area. The pathway measures approximately 4-1/2" (114 mm) x 4-1/2" (114 mm) and is adjustable to accommodate wall and floor thicknesses between 4" (102 mm) and 8" (203 mm).