Keep a 1 lb. (0.45 kg) Grill Adapter and a spare one pound fuel cylinder on hand and don’t worry about running out of fuel at your backyard BBQ. This adapter attaches to any full-size propane grill and allows you to hook up a 1 lb. (0.45 kg) fuel cylinder from the store in a pinch when your 20 lb. (9.07 kg) tank runs out.