$52.99 Carlon Electrical Box PVC Extender | Blain's Farm & Fleet
TayMac SE450WH Weatherproof Box Extension, 1-Gang, (4) 1/2-Inch Outlets, White: Amazon.com 
ReceptXtenders 1-Gang 3/4 in. Electrical Receptacle Box Extension Ring-00006 - The Home Depot
