Description
FEATURES The neverest RKI backdraft damper 4 inch effortlessly opens and closes automatically. This versatile dryer vent damper is equipped with a robust spring and suits both horizontal and vertical installations. Our Inline vent draft blocker is retrofit-friendly and fits seamlessly..PREMIUM MATERIAL Made with quality materials, the housing of our air duct damper flap is galvanized steel, while the blades are aluminum, and the axle and spring are stainless steel. Achieve tight sealing and fastening with the rubber strip attached to the outside of our 4 inch damper duct..PERFORMANCE Our 4 inch hvac damper prevents cold air or wind from entering the ventilation pipe. The flap opens only in the outgoing air direction, ensuring no external air can penetrate the ventilation pipe..MULTI-USE Ideal for AC, dryers, exhausts, extractor or range hoods, heating systems, vents, and various residential, commercial, and industrial HVAC applications. The rubber seal minimizes noise during flap blade movements. Install only in metal ducts, make sure to measure your duct diameter before purchasing..EASY INSTALLATION Simply push the dryer damper into the ventilation pipe as far as possible. The position of the spring should be horizontal when the flap is installed horizontally so that it can be opened and closed optimally. This also applies to the vertical installation.
