Flame King 150,000 BTU Propane Regulator — Vertical 2-Stage for RVs, Heavy-Duty Aluminum, Rain Cover

Flame King’s 150,000 BTU vertical, two-stage propane regulator supplies stable, high-capacity LP gas flow to large RVs, trailers, food trucks and generators from 100 lb or ASME tanks.

This heavy-duty aluminum regulator is built for high-demand mobile and stationary propane systems that require consistent outlet pressure and reliable connections. The dual-stage design smooths pressure fluctuations, the inlet and outlet threads match common RV plumbing standards, and a protective rain cover helps shield the device in outdoor installations. It’s sized and rated to handle appliances with elevated BTU requirements while offering installation-friendly fittings.

How does the two-stage design help when multiple appliances run at once?

The two-stage configuration reduces the pressure swings that can occur when a system switches between low and high demand. The first stage drops tank pressure partially, and the second stage fine-tunes the output to keep gas delivery steady to burners, heaters, and refrigerators.

• Maintains consistent outlet pressure under changing loads
• Smoother gas delivery avoids appliance sputtering or performance dips
• Better handling of simultaneous high-BTU draws up to 150,000 BTU/hr

What connections and pressure specifications should I expect?

This regulator uses standard inlet and outlet threads common to many RV gas systems, making it compatible with typical hoses and piping. Its outlet pressure is rated at 11 inches of water column, sufficient for a wide range of RV and generator appliances.

• Inlet: 1/4" female 18 NPT (fits standard tank/regulator hookups)
• Outlet: 3/8"-18 NPT to match main RV gas lines
• Outlet pressure: 11 in. W.C.; capacity: 150,000 BTU/hr

Is this regulator durable and weather-resistant for outdoor use?

The body is machined from heavy-duty aluminum for strength and corrosion resistance in mobile environments. The unit includes a top-mounted vent and a rain cover to help protect the internal components from precipitation and debris.

• Robust aluminum construction for long-term use
• Top vent hole included per design standards
• Removable rain cover helps shield the regulator in exposed locations

How will this fit into my RV or food truck gas system?

Designed for larger vehicles and stationary setups that demand higher BTU capacity, the regulator matches common thread sizes used on RV plumbing. Whether replacing an OEM part or upgrading to support more appliances, the fitting sizes simplify integration for most installers and service technicians.

• Works with 100 lb and ASME tanks commonly used on larger rigs
• Suitable for RVs, trailers, campers, food trucks and generators
• Vertical mount orientation streamlines space-constrained installations

Who is this for: Owners and technicians of larger RVs, commercial food trucks, mobile kitchens, or generators who need a rugged, high-capacity propane regulator that delivers steady pressure under heavy loads. If you run multiple high-BTU appliances, want a reliable replacement for factory regulators, or require standard NPT inlet/outlet compatibility for quick installation, this Flame King two-stage regulator is built to meet those needs.