Dryerbox RB-500 Metal Retro-Fit Receptacle to House Dryers Flex Hose, White Installs in existing drywalled wall, not for new construction There are two retrofit versions, please read the description carefully Design favors upward exhaust direction. Eliminates a potential fire hazard and made in the USA. Yields 2 sq. feet of living area by moving both appliances back 5". Save money and energy by increasing the dryer's efficiency. White powder coat over 22 ga. aluminized steel. Reclaim several inches of clearance.