Conntek 80SS2-GYBX 50 Amps 125/250 Volts Power Inlet Box, For Generators Up to 12,500 Watts, Grey Cap Configuration: NEMA CS6375 or SS2-50P For Use With Generators Up to 12,500 Running Watts 4 Knockouts @ 0.85 inches Grey Cap for Additional Personalization Recommended Cord Series: TES1450, 1450SS2 & TE6381 Transfer Switch Inlet Box 50A 125/250V Inlet Box Super Durable Metal box Generator Power Inlet BOX