The Mr. Heater 7/8 in. D Brass Female P.O.L. x Male Plug Propane Cylinder Fill Plug is engineered for reliable, field-ready propane fills. Built from solid brass and finished in a durable gold tone, this fill plug stands up to repeated use in outdoor environments, fueling grills, heaters, and other propane-powered gear with confidence.
Why this fill plug stands out
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Brass construction delivers lasting durability and corrosion resistance in propane environments, so you can rely on a tight seal session after session.
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7/8" valve outlet diameter aligns with standard POL fittings found on most propane cylinders, ensuring broad compatibility at your preferred filling location.
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Connection Type: Female P.O.L. x Male Plug provides a straightforward, secure connection between the cylinder valve and filling equipment for a clean transfer.
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Compact, portable design makes it easy to carry in a toolbox, RV, or service backpack, ready for on-site fills at campsites, job sites, or outdoor events.
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Trusted brand Mr. Heater is known for practical, dependable outdoor gas accessories that simplify propane handling.
Ideal uses and real-world scenarios
Whether you’re outfitting an RV, preparing for camping trips, or coordinating outdoor heating and cooking setups, this fill plug simplifies the process of topping up propane cylinders. It’s particularly helpful for mobile fill operations and service technicians who need a reliable connection between POL valves and fill lines. Use it with standard propane cylinders and approved filling equipment to maintain safe, controlled fills.
How it works (quick overview)
- Ensure both the cylinder valve and fill equipment are clean and in good condition, with all safety precautions observed.
- Attach the Female P.O.L. end to the cylinder’s POL valve.
- Connect the Male Plug end to the corresponding fill line or adapter.
- Open the fill line slowly following station guidelines, monitor for leaks, and complete the fill as directed.
- Close valves, disconnect in reverse order, and store the plug in a dry, protected area.
Safety and care tips
Always fill cylinders at certified locations and in accordance with local regulations. Keep connectors clean, inspect seals for wear, and store in a dry place away from heat sources. This brass fill plug is designed for repeated use with standard propane equipment, providing a dependable seal and a solid connection when you need to top off your cylinders.
