Under Garage Door Narrow Vent Front 1 Inch Step Down Extender

We’ve had users reach out whom love our Under Garage Door Narrow Vent solution, however their garage door concrete has a rain guard built in, and they would like to save every inch possible when it comes to door height. This adapter slides into the front of our Under Garage Door Narrow Vent dropping the front down approx. 1in in length. PLEASE NOTE: You are purchasing the Front Slide in Step Down adapter Only in this listing. You’ll still need our Under Garage Door Narrow Vent. This adapter will also slow down the air flow, with the additional bends. This may cause some issues with high output devices such as large Portable AC Units. Must have at least 2 Inches of Space between the Garage Door and the Rain Lip in the Concrete. If your garage door sits right next to the concrete, this step down adapter will not work. Screenshot