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4" Square Conduit Boxes   4" Square Boxes 1-1/2" Deep   4" Square Boxes 1-1/4" Deep   4" Square Boxes 2-1/8" Deep   4" Square Boxes 3-1/2" Deep   4" Square Bracket Boxes 1-1/2" Deep   4" Square Bracket Boxes 2-1/8" Deep   4" Square Extension Rings 1-1/2" Deep   4" Square Extension Rings 2-1/8" Deep 4" Square Flat Covers   4" Square Garvin Covers   4" Square Mud Rings 1 Gang   4" Square Mud Rings 2 Gang   4" Square Offset Mud Ring   4" Square Tile Covers 1 Gang   4" Square Tile Covers 2 Gang   4" Square to Round Device Rings   4" Swivel & Kwik-Hang Fixture Covers   Wire Protector Pans 4-11/16" Conduit Boxes Conduit Body Electrical Boxes & Covers Handy Boxes 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   4" Square Conduit Boxes: 4" Square Flat Covers 4" Square Flat Electrical Box Cover w/ Ring Double Gasket PLENUM 4" Square Flat Electrical Box Cover w/ Ring Double Gasket PLENUM is used to close off an electrical box that is in use. Angled mounting “ears” or slots allow for up to 12° of box misalignment. Cover Size: 4” Flat Ring Double Gasket for Vapor Seal Material: Steel 53C1-VT Call 866-770-4693 for details on volume discounts.