This “Y” tube is designed to be used with a cabin heat box to make warm air available to two or more locations in the aircraft. Constructed of seamless 6061-T4 tube. It weighs only 1.7 ounces. These tubes are expanded to a 2″ ID on the inlet end, to slip over and clamp to the 2″ OD tube of the cabin heat box, or even ganged. They are furnished with one stainless steel hose clamp.