Master Flow 4 in. 90-Degree Turned Aluminum Adjustable Elbow

Master Flow 4 in. Aluminum Elbow makes venting a boiler, furnace or hot water heater a snap, installing on an angle up to 90 via a crimped-end design that makes it easy to affix. The elbow fits roundest aluminum pipes with 4 in. Dia Ideal for use in high-heat applications. Ships in 90 position.|Durable aluminum construction|Designed to fit round piping so that you can vent boilers, furnaces and hot water heaters on an angle|Light-weight, crimped-end design installs easily and provides a secure fit|Seam seal using building code approved sealant or duct tape for a quick and easy finishing touch|Fits most round aluminum pipes with 4 in. Dia|Adjustable design allows use at angles up to 90|For reliability in high-heat applications