Specification:Product name: Air for crude oil Heater AccessoryExhaust Material: ABSSuitable for the following Air Heaters:for Airtronic D2for Airtronic D4for Airtronic D4Sfor D1LCfor D1LC Compactfor D3LCfor D3LC Compactfor D5LCPart number:251864810100Exhaust Pipe:Color: SilverMaterial: Stainless steelLength: 60cm (before stretch)Diameter: 24mmAir Intake Pipe:Color: BlackMaterial: Aluminum foilLength: 50cm (before stretch)Diameter: 25mmPackage Included:1 * Muffler1 * Intake Pipe1 * Filter1 * Stainless Steel Tube1 * Set ClampsOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.