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

This Master Flow 4 in. Aluminum Elbow makes venting a boiler, furnace or hot water heater a snap. Installing on an angle up to 90 degree via a crimped-end design that makes it easy to affix. The elbow fits most round aluminum pipes with a 4 in. diameter and features a 400 degree F maximum operating temperature, ensuring reliability in high-heat applications.

• Adjustable to any angle through 90°
• All aluminum construction
• For venting boiler, furnaces and water heaters