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This Flame King regulator lets you run two propane tanks at once, automatically switching from the primary tank to the reserve tank the moment the first one empties out, and back again once it's refilled and reconnected.
An indicator changes color to show when a tank needs a refill, and two 12-inch pigtail hoses are included to connect the regulator to each tank. The double-stage design keeps gas pressure steady even as demand changes.
A solid pick for RVs, vans, and trailers running dual tanks that don't want to lose propane supply mid-trip.
