The DirectVent Pro Ceiling Support/Wall Thimble Cover is used to finish off your installation. The decorative cover, painted black, is designed for horizontal (through-wall) installations. Sealed with insulation to keep out air leakage and easily fits over the Wall Thimble Face Plate. It may also be used as a decorative Ceiling Support Cover for flat ceiling installations.DuraVent DirectVent Pro is a complete venting system designed for use with gas direct vent stoves, heaters, and fireplaces. See all 5"" x 8"" DuraVent DirectVent Pro Components.
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Now I bought next two 5"" x 8"" DuraVent DirectVent Pro Ceiling Support/Wall Thimble Cover - 58DVA-DC! This is the best ducting what I ever Had!