3M 3" Barrier Ultra Plastic Pipe Device ULTRA-PPD3 (98040052627). A one piece metal collar assembly encasing 3M's heat-expanding 3M Fire Barrier Wrap Strip Ultra GS material. Used to firestop up to 3 (76.2 mm) non-metallic pipe, cables and combos in new and retrofit installations. Achieves up to 3-hour fire protection in tested and listed systems. Device mounts easily and quickly (takes about 1 minute) when using 3M Ultra Fast Anchors and a pliers (requires 3 anchors, anchors sold separately), no power tools, mounting screws or other fasteners needed. Can also be anchored using conventional methods (e.g. toggle bolts for gypsum or masonry anchors for concrete).