From the Manufacturer --------------------- Leviton's line of Heavy-Duty Specification Grade receptacles are designed and manufactured to withstand the most demanding environments. Available in a wide variety of configurations, including isolated ground, tamper-resistant, etc., these Commercial Grade devices are the electrical contractor's choice for use in hotels, schools, hospitals and commercial office buildings. 20-Amp, 125 Volt, Slim Body Duplex Receptacle, Straight Blade, Commercial Grade, Self Grounding, Brown.