DuraVent DuraVent 4" x 6-5/8" Inner Diameter - DirectVent Pro Direct Vent Pipe - Double Wall - Co-Linear Masonry Chimney Conversion Kit with Flex Pipe and High Wind Cap

DirectVent Pro Collection 4" x 6-5/8" Co-Linear Direct Vent Masonry Chimney Conversion Kit with 3" x 30' Flex and High Wind Cap StyleUse when installing a direct vent co-linear insert into a masonry chimney. Kit includes: Choice of High-Wind Termination Cap, and two pieces of Aluminum Flex lengths - one Red (exhaust), and one Green (air intake). See chart for diameters and lengths.DirectVent Pro features tight inner connections for superb performance, with no gaskets or sealants required (unless specifie...