Quad receptacles have four outlets that are internally connected and can be wired as a single circuit or split into two circuits. Note: The current rating of your plug should not Proper installation is key for your two-duplex outlets. For expert two-duplex outlet installation, contact the professionals at your local Mr.Red Hospital-Grade Poleital Quad Outlet features a NEMA 5-20R construction and includes outward-facing ground terminals that make handling up to four Shop our Quad Outlet collection. Zoro has low prices & fast shipping on millions of tools, parts and supplies for your business.