Metal Ducting 90 Degree Equal T-Piece with Rubber Seals Rubbers seals allow easy push fit installation without the need for sealants or tapes. Galvanised metal t-piece with male spigot connections, which will fit inside female fittings (Such as spiral ducting). Equal T-pieces feature spigots of the same diameter as the main branch. A female coupling will be required if you want to join a tee-piece to another male fitting (Such as a bend). T-Pieces are used to create branches off of a main duct run, or to connect multiple branches of a duct system together. They achieve this without the need to cut into the physical spiral ducting. They are therefore faster and easier to install than other methods such as saddles or boots. Technical Characteristics With rubber seal Air Tightness Class: C Ease of installation through the Soft-Edge technology distinguishes this range. As a result of the C and D classification, the high air tightness of the range products contribute to a more energy efficient system. Integration of environmentally friendly methods is a high priority within our production process. Quality These products comply to the air tightness – class C and D in accordance with NEN-EN 1507 and 12237 as well as, M1 Cleanliness classification of air handling components, DW-144 standard, Luka-standard and SITAC-standard.