Lindemann DirectVent Pro Cathedral Ceiling Support Box 4" x 6 5-8" in Silver

Use to offset obstructions as needed. Fully unitized, twist-lock construction. Elbows swivel, allowing the lock to remain fully engaged while aligning to the desired direction. The angle will remain fixed at 45 . DirectVent Pro Elbows feature twist-lock construction and swivel bases allowing the lock to remain fully engaged while aligning to the desired directions. The elbows are available in either black or galvanized outer walls, and are fixed at 45 or 90 . The Elbow Straps are 17" long designed for even the most challenging installations.