Product details:

High-impact polycarbonate construction provides maximum durability Patented keyhole mounting system allows installation in under a minute Includes attached gasket and mounting hardware Pre-configured for gfci with patented knockout technology for alternate devices including duplex and single receptacles, and switches - 16-in-one Extra duty 5800 series covers meet or exceed the extra duty rating per UL 514D, and are NEMA 3R rated