Mr. Heater Full Flo Plug, F276281
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4" Male pipe thread x full flow Male plug
Full flow plug with no restrictions
For appliances over 80,000 BTU's
4" Male pipe thread x full flow Male plug. Features full flow plug with no restrictions. For appliances over 80,000 BTU's or high-pressure appliances. Can be used with model No. F276334 or can replace excess flow plug in model No. F276181 and F276186.