Sigma Engineered Solutions Weatherproof Extension Ring 1-Gang Gray Metal Weatherproof New Work Standard Box Extender Exterior Electrical Box in the Electrical Boxes department at Lowes.com
Sigma Electric Weatherproof Extension Ring 1-Gang Gray Metal Weatherproof New Work Standard Box Extender Exterior Electrical Box in the Electrical Boxes department at Lowes.com
Arlington BE1-2 Electrical Outlet Box Extender, 1-Gang, White, 2-Pack, Used for extending electrical boxes up to 1-1/2-inches - Walmart.com