The Cummins 50A Parallel Kit lets you double the power of your generators by running your Onan P4500i Inverter Generators in parallel. Perfect for RV and camper applications. This Parallel Kit is recommended for use with two Cummins Onan P4500i Inverter Generators or with one P4500i and one P2500i Inverter Generators.• Links two Onan P4500i Inverter Generators• EPA and CARB Compliant• Cummins Part No.: A058M290• High quality at an affordable price• Expertly made from premium materials• Built to match your exact requirements EPA & CARB Compliant | Cummins 50A Parallel Kit for Onan P4500i Inverter Generator