Raises point of engine and CVT air intakes so vehicle can be semi-submersed in water / mud without taking in water to the engine. Snorkel Extension Kit is available for roof level air intake and CVT exhaust. Not compatible with Headache Racks, Gear Rail equipment, DragonFire Cargo Bed Roll Bar and Windshield Wiper and Washer Kit. Adaptor for Snorkel Kit (715004414) and Sealed Air Box (707800714) are required for installation on 2017 and prior models. Standard on Defender X mr models. Defender, Defender MAX (except Defender HD5 and Defender PRO)