If you rely on dual propane tanks for RVs, trailers, or campers, a reliable 2-stage automatic changeover regulator is essential. This guide highlights five well-matched options that support continuous gas flow, simplify tank management, and work with standard 1/4″ inverted flare connections. The products below are best for campers who want seamless switching between tanks, reduced risk of leakage, and straightforward installation. Each choice is explained with ideal use cases, a quick pros/cons snapshot, and practical buying tips.
| Product | Best For | Key Benefit |
|---|---|---|
| 2 Stage Automatic Changeover LP Propane Gas Regulator with 36″ RV Pigtail | Large RV setups | Long pigtail hose for flexible mounting |
| 2-Stage Automatic Changeover LP Propane Gas Regulator with 24″ RV Pigtail | Compact trailer rigs | Shorter hose for tight spaces |
| BlueStars 2-Stage Automatic Changeover Regulator with 36″ Pigtail | All-around durability | Includes mounting bracket and fittings |
| MENSI RV Trailer Propane Regulator 2-Stage | Budget-friendly kits | Copper pigtails with solid build |
| Flame King KT12ACR-2 2-Stage with 12″ Pigtails | Simple dual-tank setups | Two short pigtails for compact rigs |
2 Stage Automatic Changeover LP Propane Gas Regulator with 36″ RV Pigtail Propane Hoses
This 2-stage auto changeover regulator is designed for dual-tank RV systems, allowing continuous propane supply as you switch from primary to reserve tank automatically. Best for larger RVs or campers that need longer hose reach and easier tank maintenance. The unit uses 1/4″ SAE inverted flare inlets and a 3/8″ NPT outlet, with a solid brass construction and stainless steel braided hose for durability. A notable caution: installation should follow the specified sequence to avoid gas leakage, and ensure all connections are tightened correctly.
Who it’s best for: RV owners with dual tanks seeking automatic switching, visible status indicators, and a heavy-duty build. Why selected: It combines a robust 2-stage design with a 36″ pigtail for flexible placement and reliable gas flow. Caution: Follow the exact hose-tank connection order to prevent leakage during installation.
2-Stage Automatic Changeover LP Propane Gas Regulator with 24″ RV Pigtail
This model uses a two-stage auto changeover to ensure an uninterrupted propane supply, even with smaller RV or camper setups that benefit from a shorter pigtail. It maintains constant gas inlet pressure at 1/4″ SAE inverted flare and exits at 3/8″ NPT. The compact 24″ hose length makes it well-suited for tight spaces behind cabinets or near antenna bases. Best for: campers with limited clearance who still want automatic tank switching. Limitation: The shorter hose reduces reach in some configurations; verify clearance before mounting.
BlueStars 2-Stage Automatic Changeover Regulator with 36″ Pigtail
This BlueStars kit emphasizes compatibility and ease of installation, including a 36″ pigtail, regulator, mounting bracket, screws, Teflon tape, and a wrench. It uses 1/4″ SAE inverted flare inlets and 3/8″ NPT outlet, with an emphasis on durable brass components and stainless braided hose. Best for: RVs or travel trailers that want a complete mounting-ready kit with clear part assortment. Caution: Check that the hose and regulator inlet sizes match your existing equipment to avoid incompatibility.
MENSI RV Trailer Tank Propane Regulator 2-Stage
Designed for a balance of cost and reliability, the MENSI kit features a 2-stage auto changeover with a 15″ copper pigtail hose and a 3/8″ NPT exit connector. It’s CSA certified and built to withstand regular RV use. Best for: budget-conscious buyers who still want durable copper piping and a straightforward setup. Important: The copper pigtails reduce plastic wear but require careful routing to avoid kinking or abrasion over time.
Flame King KT12ACR-2 2-Stage Auto Changeover Regulator
Flame King’s KT12ACR-2 provides a compact option with two 12-inch pigtails, suitable for smaller RVs or trailers that require shorter hose runs. This two-stage changeover regulator supports dual-tank setups and uses standard 1/4″ inverted flare inlets with a 3/8″ NPT outlet. Best for: travelers with tight exterior storage and minimal hose length. Limitation: The shorter pigtails may require closer mounting for accessibility during use.
Buying Guide: How to Choose the Right Dual-Tank Regulator
Key questions to consider when selecting a dual-tank regulator:
- What is the tank setup? If you have two large 100 lb tanks, choose a regulator with a longer pigtail for flexible placement.
- What is the space around your RV or trailer? Shorter hoses fit tight compartments but limit placement options.
- Are you aiming for a complete kit? Some options include mounting brackets, screws, and tapes for easier installation.
- What is the connection size you require? Most kits use 1/4″ SAE inverted flare inlets and 3/8″ NPT outlets; verify compatibility with your hoses and appliances.
- Do you need a visible indicator? Automatic changeover helps you know when a tank is depleted and when to switch tanks.
- What is your budget and build quality expectations? Brass components and stainless hoses tend to last longer in outdoor conditions.
Frequently Asked Questions
- Why is a 2-stage regulator better for dual tanks? It maintains consistent gas pressure and automatically switches to the reserve tank to prevent interruptions.
- What hose length should I choose? Choose length based on your mounting location and clearance; longer hoses improve flexibility but add potential leak points if not secured.
- Do these regulators require professional installation? Many installations can be done by knowledgeable DIYers; follow manufacturer instructions and safety guidelines.
- What safety steps are essential during installation? Ensure all connections use the correct fittings, tighten properly, avoid tape on some joint types unless specified, and check for leaks with soapy water after installation.
- Can I mix brands in a dual-tank setup? Mixing is possible but ensure compatibility of fittings, threads, and flow ratings to avoid leaks or performance issues.
- Is CSA certification important? CSA-certified regulators meet safety standards and are common in US RV applications, adding a degree of assurance for durable performance.