Camping and RV trips rely on a steady propane supply for cooking, heating, and sometimes refrigeration. A high-quality two-stage auto changeover regulator helps ensure uninterrupted fuel flow when switching between dual tanks. The following selections are among the most suitable propane regulators for campers, vans, and trailers. Each product is evaluated for ease of installation, safety features, BTU capacity, and compatibility with standard RV hoses and fittings.
Summary of Chosen Products
| Product | Brand | BTU Capacity | Key Feature | Inlets/Outlets |
|---|---|---|---|---|
| KT12ACR-2 | Flame King | 345,200 BTU | Auto-changeover with dual pigtails | 1/4″ SAE inverted flare / 3/8″ NPT |
| RecPro RV Propane Regulator | RecPro | 250,000 BTU | Red indicator window for tank alert | 1/4″ female NPT / 3/8″ NPT |
| PYXGLAQ Dual Tank Regulator | PYXGLAQ | 210,000 BTU (primary) / 130,000 BTU (reserve) | Dual tanks with color indicator | 1/4″ SAE inverted flare / 3/8″ NPT |
| Flame King ACR-2a | Flame King | 345,200 BTU | Dual-tank auto-switching | 1/4″ SAE inverted flare / 3/8″ NPT |
| NQN 2-Stage Regulator & Hoses | NQN | 210,000 BTU / 130,000 BTU | Stainless braided hoses included | 1/4″ MIF / 3/8″ NPT |
Note: All models listed support two-tank configurations and automatic switching, which helps maintain continuous gas pressure while refilling or replacing tanks. When selecting a regulator, consider BTU needs for your RV appliances, the hose length you require, and whether you need included pigtails or mounting hardware.
Flame King KT12ACR-2 Dual Tank Regulator With Pigtails

The Flame King KT12ACR-2 is a two-stage auto-changeover regulator designed for RVs with dual propane tanks. It supports 345,200 BTU and includes two 12-inch pigtails to connect to a propane tank or supply line. The unit automatically switches from the primary to the reserve tank when the primary is depleted, minimizing interruptions in gas supply. Its inlet connections are 1/4″ SAE inverted flare and the outlet is 3/8″ NPT female pipe thread. This regulator is UL Listed for reliability in outdoor environments.
Key considerations include compatibility with standard RV hoses and the ability to remove an empty cylinder without interrupting service. For campers with two propane tanks, the KT12ACR-2 provides a practical balance of security and convenience, especially when immediate refilling is needed on the go.
RecPro 2-Stage Auto Changeover Regulator

The RecPro two-stage regulator features an automatic switch to the full tank, indicated by a red window. It ships with 11.5-inch pigtails and a compact footprint suitable for trailers and compact RVs. The unit can withstand up to 250 PSI working pressure and uses 1/4″ female NPT inlets and a 3/8″ female NPT outlet. A built-in safety design includes a flow limiter and check valve, enhancing safety during operation and refills. Weighing approximately 2.5 pounds, this regulator is easy to install and transport.
Mounting considerations include ensuring secure attachment near dual-tank holders and verifying that the hose length matches your storage layout. The red indicator window simplifies monitoring tank status at a glance, which can help in planning trips without unexpected gas interruptions.
PYXGLAQ 2-Tank RV Regulator Kit

PYXGLAQ offers a robust two-stage regulator for dual-tank setups, designed for campers and trailers. It maintains primary and reserve BTUs at 210,000 and 130,000 respectively and uses 1/4″ SAE inverted flare inlets with a 3/8″ NPT outlet. The kit includes dual tank hoses and a gauge, with CSA certification for added confidence in outdoor use. The regulator automatically switches from primary to reserve, and the indicator color alerts when a tank is depleted, making refueling planning straightforward.
Its all-brass construction and stainless-steel braiding provide durability in harsh environments. Installation involves careful sequencing to avoid leaks, with attention to the correct hose connections and securing the mounting location to handle vibration during travel.
Flame King ACR-2a Two-Stage Regulator

The Flame King ACR-2a is another two-stage auto-changeover regulator intended for RVs with dual tanks. It automatically switches from the primary to the reserve tank when necessary, ensuring continuous gas supply. The unit is UL Listed and features 1/4″ SAE inverted flare inlets with a 3/8″ NPT female outlet. It supports up to 345,200 BTU, making it suitable for a wide range of propane appliances on board.
When choosing this model, consider whether you need pigtails included or if you will connect via your own hoses. The ACR-2a is designed for straightforward installation and reliable performance in standard RV configurations, with a focus on safety and consistent pressure delivery.
Flame King KT12ACR-2a With Pigtails

This model mirrors the KT12ACR-2 layout with two 12-inch pigtails for easy connection to dual tanks. It provides a dual-tank switching mechanism, UL-listed safety, and BTU capacity comparable to other high-capacity regulators in the category. The included pigtails simplify installation for RVs with standard mounting configurations. Inlets and outlets align with common RV fittings, minimizing the need for adapters.
As with other regulators, verify hose compatibility and ensure a secure mounting location to withstand travel vibration. The built-in automatic switching helps prevent gas loss or interruption during tank changes, which is particularly valuable for long trips or extended camping stays.
Buying Guide: Key Considerations For Selecting A Camper Propane Regulator
When choosing a two-stage auto changeover propane regulator for a camper, several factors influence performance, safety, and convenience:
- <strongBTU Capacity: Determine the primary and reserve BTU requirements of your RV appliances. Higher BTU ratings support grills, heaters, and other high-demand devices, but ensure your hoses and fittings suit the regulator’s output.
- <strongTank Configuration: If you use two propane tanks, a dual-tank regulator with automatic changeover helps maintain continuous supply. For single-tank setups, verify compatibility with your preferred storage arrangement.
- <strongInlets and Outlets: Most RV regulators use 1/4″ SAE inverted flare inlets and a 3/8″ NPT outlet. Confirm that your hose assemblies and fittings match these dimensions to avoid leaks.
- <strongIndicator Features: Some models include a red indicator window or color-changing indicators to show when a tank is depleted. This can simplify maintenance and refill planning during trips.
- <strongPigtail Length: Pigtails provide straight-forward connections to tanks. Consider whether the regulator includes pigtails and whether you need longer or shorter hoses for your storage setup.
- <strongSafety Certifications: Look for UL-listed regulators and CSA-certifications where applicable to ensure compliance with safety standards in outdoor use.
- <strongDurability and Materials: Brass construction and stainless-steel braiding offer resistance to corrosion and outdoor conditions, which is valuable for long-term RV use.
- <strongEase of Installation: Some models include mounting brackets, covers, or easy-to-follow installation steps. If you’re a do-it-yourselfer, a kit with clear instructions can save time.
- <strongMaintenance: Check whether the regulator requires regular maintenance or inspection intervals to maintain a stable gas supply and safe operation.