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4" Square Conduit Boxes 4-11/16" Conduit Boxes Conduit Body Electrical Boxes & Covers Handy Boxes   Handy Box Covers Handy Boxes & Extension Rings   Switch Box Accessories   Switch Boxes BX/MC   Switch Boxes w/ Conduit KO's   Switch Boxes/NM Electrical Boxes & Covers Masonry Electrical Boxes & Covers Multi-Gang Electrical Boxes & Covers Octagon & Round Electrical Boxes & Covers Stainless Steel Electrical Boxes & Covers Switch Boxes Electrical Boxes Plastic Fasteners, Hangers & Clamps Fire Alarm / Emergency Boxes & Covers Fittings, Hubs & Bushings Fixture Whips & Grips GFCI--Ground Fault Circuit Interrupters Grounding Products Lighting & Lamps & CFL Bulbs Service Entrance Products Switches, Devices & Receptacles Tools & Install Accessories Wall Plates Weatherproof Boxes & Covers Aerial Drop Wire Hardware Beam Clamps Bridle Rings Bulk Wire & Cable Cable Management Distribution Rings Fire Prevention Products J-Hooks Jacks, Face Plates & Bezels Patch Cables Rope, Twine & Pulling Tape   Electrical Boxes & Covers Handy Boxes: Handy Boxes & Extension Rings Switch Box Extension Switch Box Support Extension is used for an extra measure of rigid security & alignment at any time during new or rebuild construction when studs are exposed & accessible. Note: Price is Per Pair. SBEX Call 866-770-4693 for details on volume discounts.