Sigma Electric Weatherproof Extension Ring 2-Gang Gray Metal Weatherproof New Work Standard Box Extender Exterior Electrical Box in the Electrical Boxes department at Lowes.com
Westgate 2 Gang Weatherproof Extension Box W/ 8 Hubs-1/2'' W2XB50-8
Carlon 2-Gang ENT Box Extender A420RR - The Home Depot
ReceptXtenders 2-Gang 3/4 in. Electrical Receptacle Box Extension Ring (5-Pack) HD50026 - The Home Depot
Steel City 2-Gang 4 in. 21 cu. in. New Work Metal Square Electrical Box Extension Ring (Case of 20) 531511234-20R - The Home Depot
Switch & Outlet Deep Electrical Box Ring 2-Gang 1.375''
Electrical Box Extension - Cableorganizer.com
Carlon Multi-Gang Non-Metallic Electrical Box Extender (2-Pack) B1MGEXT-2 - The Home Depot
Carlon® 2-Gang Electrical Nonmetallic Tubing Extender at Menards®
Arlington BE1-2 Electrical Outlet Box Extender, 1-Gang, White, 2-Pack, Used for extending electrical boxes up to 1-1/2-inches By Arlington Industries - Walmart.com
2 Pcs, 2 Gang Multi-Gang Device Extender, 1/2 In. Raised, .0625 Galvanized Steel Mounted to Existing Device Rings & Switch Boxes - Walmart.com
Arlington BE2X 2-Gang Extra Large Box Extender
RACO 1-Gang Silver Steel New Work/Old Work Standard Box Extender Wall Electrical Box in the Electrical Boxes department at Lowes.com
RACO 2-Gang Galvanized Steel 2-1/8" Deep 4-11/16" Square Electrical Box Extension Ring at Menards®
ReceptXtenders One 1/4" Electrical Receptacle Box Extender Double Gang Mud Ring | eBay
Box Extender - Double Gang - Expandable
Multi-Gang Switch Box Extension Rings, 4-gang
Electrical Box Extenders - This .83 cent piece of plastic is amazing
BE2 - Arlington BE2 - 2-Gang Box Extender
iMBAPrice BE3-1 (3-Gang) Electrical Power Outlet Box Extender, White - - Amazon.com
ReceptXtenders 2-Gang Black PVC Weatherproof New Work/Old Work Standard Box Extender Wall Electrical Box in the Electrical Boxes department at Lowes.com
iMBAPrice BE2-2 (2-Gang) Electrical Power Outlet Box Extender - White, 2-Pack (Made in USA) - Walmart.com
Arlington | 2-Gang Box Extender with Larger, Trimmable Flange
P&S EXT-2 : 2 GANG BOX EXTENDER | Gordon Electric Supply, Inc.