Duravent 4" x 6-5/8" DirectVent Pro Wall Firestop | 46DVA-WFS

DirectVent Pro Adjustable Roof Flashing for Roof Pitch from Duravent For Horizontal (Through-Wall) Installations. Refer to the Appliance Manufacturer’s Installation Instructions for Requirements. Choose from the following Wall Firestop sizes: 4" x 6-5/8" Diameter 46DVA-WFS 5" x 8" Diameter 58DVA-WFS About the Duravent DirectVent Pro System DirectVent Pro features tight inner connections for superb performance, with no gaskets or sealants required (unless specified by the appliance manufacturer). All black pipe lengths, pipe extensions, and elbows feature laser-welded outer wall seams for a sleek finish. Low-profile locks and no hems or beads allow for a beautiful product that looks elegant in any interior.  DuraVent's direct vent is specified by nearly every major stove and fireplace manufacturer in the U.S. and Canada, with the largest choice of termination caps for direct vent available. Applications DirectVent Pro is a unitized, coaxial (concentric) venting system designed for