This 30A generator extension cord has a threaded ring on the female connector to form a watertight seal around an inlet when securely screwed on. The male plug also has a threaded ring to connect an additional power cord or adapter. This cord is designed to work with the NEMA L14-30 Power Inlet Boxes.
Approval: Plug, Connector, and STW: UL, C-UL
Limited one year warranty