RV Generator Power Adapter 30 Amp 125/250 Volt Male Plug 4-Prong to 30 Amp RV Power Cord Connector 125 Volt,STW10/3 12-inch Extension Cord for 30 Amp RV Camper NEMA L14-30P to NEMA TT-30R (CRG30430)

Worked like a charm

Works great

Works great. Use it on an occasional basis during the real cold winter months to throw power from a portable generator to my toy hauler so the trailers onboard batteries and the motorcycles (parked in the toy hauler) can maintain a healthy charge.