EZ Path Series 33NEZ Smoke & Acoustical Pathway is a pathway device designed to allow cables to penetrate non-fire-rated walls, floors and ceilings without the need for smoke sealing. Designed for easy installation in non-rated floor, ceilings, and walls, EZ Path Series 33NEZ Smoke & Acoustical Pathway provides exceptional cable capacity with tested and approved cable capacities ranging from 0 up to 100% visual fill. A single unit installed in a wall exceeds the cable carrying capacity of a 4″ (102 mm) sleeve utilizing typical putty firestop systems (35% cable loading).