RVEEL Cordsets incorporate the Easily Engaged Lock System (EEL) on the connector end and a robust, collapsible handle on the plug end, which together create a safe, detachable power connection and a watertight seal. No threaded ring required! Built in cord light to connect at night or notify the user the power is on. Allows coaches with 50A locking service to connect to 15A household power Includes sealing collar & threaded ring to attach to other cord sets. | Marinco 30 Amp to 50 Amp RV EEL Adapter, 25