Marketing InformationStunning design and engineered Excellence® utilizing state-of-the art manufacturing. 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. Engineered Excellence® with innovation and style DirectVent® Pro. DuraVent® direct vent is specified exclusively by nearly every major stove and fireplace manufacturer in the US and Canada.