Leviton is the leading manufacturer of Ground Fault Circuit Interrupters (GFCIs) in the electrical industry. Available in Extra Heavy Duty Hospital and Commercial Spec Grade, they are ideal for a wide range of GFCI applications. Our large selection of GFCIs includes Tamper-Resistant (TR) GFCI devices that meet Section 406.11 of the 2008 code and help protect children from electrical shock. For the highest level of ground fault protection, install 2008 NEC code compliant Weather-Resistant GFCI (WR) receptacles, which meet UL 498 requirements. Built with UV stabilized engineering thermoplastic, the devices have high cold impact resistance and feature stainless steel straps and mounting screws.