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Challenger 20 Space Nema 3R 120/240V Hinged Cover Only 36 3/8" x 14 3/8" Style:Used Essential component for HVAC techniciansEngineered for durability, the Challenger 20 Space Nema 3R Hinged Cover provides weather resistance and secure protection for your electrical equipment. With a spacious 36 3 8" x 14 3 8" design, this cover is perfect for organizing and safeguarding your valuable devices. Brand: Challenger Spaces: 20 Space Circuits: 40 Circuit Volts: 120 240V Measurements: 36 3 8" x 14 3 8"