Product details:

The ASM SW Dometic RV 3105935.039 Quick Cool Ducted Return Air Grill is a handy item to have installed. If you forget to leave the AC on and want to cool down quickly, it diverts the flow from the ducts. This return air vent dumps it straight down onto your head to refresh and rejuvenate when it's hot outside. When you have had enough, simply slide the diverter shut. This air conditioner accessory includes a washable filter that removes without tools for added convenience.