Dri-Z-Air DZA-26 26-Ounce Refill Crystals Dri-Z-Air removes moisture from the interiors of trailers and campers during periods of storage or lay-up Keeps moisture from clothes, sheets, shoes, etc Also prevents condensation on windows, walls, and ceilings Dri-Z-Air Pot (0848-7001) 26-ounce pouch