Generator Adapter, 4-Prong Locking, 20A L14-20 Plug To 30A, Parkworld 884975. Product Details Use on when you need to connector your L14-30 plug power cord to L14-20 generator 4-prong 20A 250V outlet. 10AWG cable inside for max 30 AMP loading. 1 piece Adaptor for generator L14 20A to L14 30A home transfer switch or house panel. Generator L14-20, 4-prong 20 AMP locking male plug. Generator L14-30, 4-prong 30 AMP locking female connector. Molded with electroplate copper terminal in order to avoid surface oxidation effectively. AC Power Adapter L14-20P to L14-30R 125V/2500W, 250V/5000W. Heavy-duty round power 1-piece adapter plug for generator, 100% copper conductor inside. Yellow with lighted. Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.