10 Best Propane Regulator 2026 in the United States

The Flame King KT12ACR6 2-Stage Auto Changeover LP Propane Gas Regulator is a solid choice for those who need a dependable regulator for their RVs, vans, or trailers. One of its standout features is its ability to automatically switch from the primary to the reserve tank without interrupting the propane supply. This is particularly useful during long trips where refilling tanks could be inconvenient. The regulator is UL listed and has an impressive BTU capacity of 345,200, ensuring it can handle substantial propane demands. Additionally, the double-stage design helps maintain consistent gas pressure, which is essential for appliances that require stable fuel flow.

On the downside, some users might find the installation slightly complex if they are not familiar with propane systems, although the included pigtails do simplify connections. The regulator is factory set at 11 inches water column, which might not suit everyone’s specific needs; some users may need to adjust it for optimal performance in their particular setup. Furthermore, while the material seems durable, it’s always advisable to check for wear and tear over time, especially if exposed to harsh weather conditions often experienced by RV owners.

This regulator is particularly beneficial for RV enthusiasts who require a reliable, automatic changeover solution with high BTU capacity. It balances convenience with thoughtful engineering, although those new to propane systems may need to seek assistance during setup.

The Fairview GR-9984 High Capacity RV Camper LP Propane Automatic Changeover Regulator is designed for those who need a reliable propane supply for their RV or camper. One of its significant strengths is its automatic switch feature, which seamlessly transitions to a second tank when the first one runs empty. This ensures you do not run out of propane unexpectedly while on your trip, providing peace of mind during your travels.

Another advantage is its high flow rate, especially in cold temperatures, making it suitable for various outdoor conditions. This can be especially helpful for camping in cooler climates, where propane is often essential for heating and cooking.

In terms of specifications, it has a maximum operating pressure of 0.43 inches of mercury and features a durable metal construction, which is a plus for longevity and durability. The outlet connection size is 0.38 inches, with a single outlet port and a national pipe tapered inlet connection, making it compatible with many standard setups. With a weight of 1.76 pounds and compact dimensions, it’s easy to install and transport.

The Flame King KT18ACR-2 is a two-stage propane regulator designed specifically for RVs, vans, and trailers with dual propane tanks. One of its strongest points is the automatic changeover feature that switches the gas supply from the empty primary tank to the reserve tank without interrupting propane flow, which is very convenient for continuous use. It supports a high BTU capacity of 345,200, making it suitable for multiple appliances or higher propane demands. The regulator’s outlet pressure is factory set at 11 water column, standard for most RV propane systems, ensuring steady and safe gas delivery. In terms of connections, it uses 1/4-inch SAE inverted flare inlets and a 3/8-inch NPT outlet, which are common and compatible with many propane setups. The regulator comes with two 18-inch pigtail hoses for easy installation and works well with optional longer hoses if needed.

Its double-stage design helps maintain consistent pressure even when the propane demand changes, improving appliance performance and safety. The product is UL listed, adding a layer of safety assurance. It weighs about 2.4 pounds and has relatively compact dimensions, which might be a consideration if space or weight is critical in your RV. Also, it’s mainly designed for RV dual-tank systems, so it’s less suitable for single-tank or non-vehicle propane setups. This regulator serves as a reliable, well-made choice for RV users needing automatic tank switching and steady propane flow, with good safety features and broad compatibility.