Leviton SmartlockPro GFCI Duplex Receptacle Outlet Extra Heavy-Duty Hospital Grade With Wall Plate Power Indication 15 Amp 20 Amp Feed-Through 125V Black (GFNT1-HGE) nostock The exposed ring is the

The exposed ring is the whole housing

5A Fan 3-Way Dimmer 3-Speed White Clamshell (AYFSQ-FH-WH)

GE GES1000ML5AA5-5 UNV Magnetic Core And Coil Ballast For 1000W S52 High Pressure Sodium Lamp Run At 120/208/240/277/480V (87218)

5A/300W Fan/Light Variable Speed Control Brown (S2-LF-BR)

Leviton SmartlockPro GFCI Duplex Receptacle Outlet Extra Heavy-Duty Hospital Grade With Wall Plate Power Indication 15 Amp 20 Amp Feed-Through 125V Black (GFNT1-HGE) nostock The exposed ring is theLeviton SmartlockPro GFCI Duplex Receptacle Outlet Extra Heavy Duty Hospital Grade With Wall Plate Power Indication 15 Amp 20 Amp Feed Through 125V Black (GFNT1 HGE) SmartlockPro GFCI Duplex Receptacle Outlet, Extra Heavy Duty Hospital Grade, Wallplate Included, Power Indication, 15 Amp, 20 Amp Feed Through, 125 Volt, Back or Side Wire, NEMA 5 15R, 2 Pole, 3 Wire, Self Grounding Black. NOTABLE FEATURES: 15 A & 20 A Feed Through