Char-Broil Universal 4′ 20lb propane to 1lb Hose Adapter $5 at WM and Amazon (addon)

Use your 20lb tank at 1lb tank gas grill
Amazon Add on…
Walmart Free pickup (YMMV) and Free s/h at $35
Connecting portable power grills to 20 lb propane tanks. The 4′ gas hose and regulator is a Type-1 fitting for OPD tanks that fits most models. The adapter is ideal for a variety of different grills, from outdoor units to tabletop models. The gas grill regulator can be installed quickly and easily without the need for tools, for added convenience. Propane tanks and portable grills are sold separately.