EZ PATH (EZDP33FWS) SERIES 33 UP TO 4 HOURS FIRE RATING PATHWAY DEVICE WITH SQUARE WALL PLATE KIT 3in x 3in (76mm) SQUARE OPENING Easy to install. No firestopping required. Self Sealing design providing exceptional F&L Ratings. UL Tested for low leakage and UL classified for the complete range of its capacity. Designed for New and Existing conditions. Pathways can be ganged for additional capacity. Permits cable segregation by use, type, vendor. Match the capacity of a 4" (102mm) conduit. EZ-Path is UL Tested and Classified with accordance with ASTM E814 (UL1479) & CAN/ULC-S115. Systems are available for common floor and wall constructions with ratings up to and including 4 hours. Maintenance-free pathway solution for moderate cable volumes through fire-rated walls and floors. When exposed to flame and high temperatures, the intumescent pads expand to form a dense insulative char that prevents the passage of smoke and flame.