Sleeves are made of steel, plastic or other materials that could be used to stop spreading of fire. The major purpose of sleeves is to create a protective cover for a pipe, preventing the heat influence, and preventing the fire from spreading via a piping system. Additional function, even though not designated as the main one but very important nevertheless, is preventing any damage to the tubes in case of deformation of surrounding material. They provide penetration of a wall by electrical cables, pipes or any other desired material or device. Sleeves often have firestop systems. We offer a wide range of sleeves and supplementary parts. Lowest prices for the best products - only on MegaDepot.