Review on Aprilaire 4725 Seal Kit: Superior Air Quality Solutions for Optimal Home Wellness by Myron Brooks

spacer protection gasket kit required for Aprilaire unit I have at home. This is a real hassle to install, although the steps are simple. You will need spray adhesive to attach the filter to the door and a scraper to remove the old filter and adhesive from the door. Aprilaire made a big mistake in product design in this regard. Why not design something that already has glue applied to it, or provide a spray? Removing an old filter is such a hassle but if you want a clean air filter you have no choice as there really isn't any other product you could use. Expect a five-minute project to take an hour (including the trip to the spray at the hardware store).