This high quality hard-sided, watertight carrying case protects your Philips AED in the most rugged and adverse conditions. It was designed to fit the Philips HeartStart OnSite, FRx, and FR2+ models. Open the lid and you'll see die cut inserts to fit extra electrode pads and battery. This waterproof carry case is made of hard-shell plastic and is suited for more rigorous use, particularly in wet outdoor settings. It can also accomodate the contents of the Fast Response Kit (68-PCHAT).