The TayMac weatherproof plastic in-use cover is a one-gang (16 in 1 ) standard horizontal/vertical cover in clear MM410C that safely covers any electrical outlet in seconds. The patented Multi-Mac features our Universal Fit system which enables you to use the same product for all types of receptacles. One Multi-Mac does it all. The cover fits horizontally and vertically. It is made up of a durable high-impact polycarbonate construction that resists breakage and corrosion. The quick fit patented key hole mount allows easy installation, along with the base configuration with it"s patented knock out technology allows for a custom fit. Simply snap out the knock-outs to fit your electrical outlet. One Multi-Mac gives you many configurations both vertically and horizontally. Included with this cover is an attached gasket and mounting hardware. The Multi-Mac meets or exceeds OSHA and NEC (article 406.8[b][1] wet location requirements with the cord plugged into the receptacle.