Description: T Piece Duct: Suitable for 75mm inner diameter duct, suitable for diesel heater heating duct Warm Air Duct: Mainly used for diesel engine air heating. and air ducts for cold, hot and diesel heaters. Heater Duct Vents: Front panel removable to allow access to screw holes for proper installation. Material: Made of high quality material, long service life and durability. Complete set of use, convenient One year warranty, worry free after-sales and quick response. Specifications: Material: Aluminum Foil Color:Black Size: 50cmx8.3cm Length : 50-70cm(The tube can be stretched, just received the product in the initial length of the product has not been stretched in the 33CM. ) Diameter: 75mm/2.95in Model:Vent Pipe Set Package Included: Outlet Pipe×2 Wind Mask×2 Y type Tee × 1 Clamp×4 Note: The tube can be stretched, just received the product in the initial length of the product has not been stretched in 33CM or so!