Use the Marinco Park Power Generator Adapter to help connect between a power cord and a generator power source to resolve any power incompatibility issues. The sturdy 10/4 STW cable connects 30-amp RV power cords to a 30-amp 4-prong power source. Designed with extra wide grip handles and molded ends for watertight connection between cord and electrical contacts. Handle of female end for easy connection | Marinco Park Power Generator Adapter, 30 Amp 4-Prong Male to 30 Amp Female