4 Cathedral Ceiling Support Box

This 4 Inch Pellet Chimney Cathedral Ceiling Support Box from the PelletVent Pro series is a Type L Biofuel Chimney Pipe component and consists of the duralock system for a tight seal. Use to support pipe. May be used on flat ceilings. Painted black. Includes: Trim and clamp. Features: Type: Ceiling Support Box. Box Type: Cathedral. Collection: PelletVent Pro. For use with Pellet Chimney Pipe. UL Listed. Specifications: Overall Dimensions: 14.25" (L) x 14.25" (W).