3M - 3M PT4RD 4 Inch Round Device

Our 3M™ Fire Barrier Pass-Through Brackets are designed for use in conjunction with our 3M™ Fire Barrier Pass-Through Device Round to support and strengthen firestop through penetration installations. Round metal brackets come in pairs for securing the device on each side of the floor or wall assembly. Features: Cable management solution for electrical, data and communication applications; One-piece, round hinged metal enclosure makes installation fast and easy; Intumescent material and foam smoke seals provide lasting firestop protection; Round shape fits easily into standard hole saw, dry or wet core bit openings; Re-enterable for high traffic areas or blank penetrations; Firestop tested for up to 3 hours in accordance with ASTM E 814 (UL 1479)