7 gallon LP OPD valve. The OPD valve that works just like a normal cylinder valve. No output-limiting orIfice inside. * Maximum output of 2 million BTU per hour @100 lbs pressure. * Easy to store, handle and install. * Allows full strength operation of any size torch, heater, or other appliance. * RV owners can be comfortable, even at sub-zero temperatures. * Purges quickly like a cylinder valve should. * Inline Float-no awkward float arm. * Sturdy and compact.