Product details:

Flexible and easy to install, the Intermatic WP1230C Flexi-Guard weatherproof two-gang in-use cover is ideal for horizontal or vertical outdoor outlets in a wet location. Compliant with Article 406.8(B)(1) of the 2005 National Electrical Code, the clear, polycarbonate cover fits over any pair of switches or wall outlets, while its pre-adhered neoprene gasket protects the connection from weather. The black, UV-stabilized base fits over existing wall outlets and comes with 6 snap-together, patented inserts to further seal the outlet: (2) for toggle switches, (2) for standard wall outlets, and (2) for decorator switches or outlets. Select a pair of inserts for the application, position them together, and snap them into the base.