Quest Dual 155 Return Duct Kit | 300MM (12" Inch) Duct CollarOn the off chance that you have a Quest Overhead Dehumidifier, models 155 you don't need to keep your dehumidifier in your nursery. Believe it or not; with this air pipe collar, you can put your dehumidifier outside the nursery, and join a restricted measure of ventilation work to the admission on your dehumidifier. This 12 inch spine will help you let loose a touch of extra space in your nursery, however, make certain to buy the stockpile air