DuraVent DuraTech Square Ceiling Support Box, 6-In x 11-In

Supports chimney pipe and provides a positive connection between support box and chimney
Suitable for both flat and cathedral (A-Frame) ceiling applications and short attic spaces
Fits between standard 16-Inon center joists and most manufactured home applications
Support Box includes Integrated Starter-Coupler, Integrated Flue Extension, and 2-piece Black Ceiling Trim
Integrated Flue Extension accepts either single-wall or double-wall stovepipe

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