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→ Flame King KT12ACR6 2-Stage Auto Changeover Regulator (with cover, bracket & pigtails)
→ Single-Stage LP Gas Regulator (tank-mount)
Free U.S. shipping & free 30-day returns — plus 5% off your first order with code RVSAFE5.
If your camper carries two propane tanks, an automatic changeover regulator is the upgrade that ends 6 a.m. furnace failures: when the service tank runs empty, it switches to the reserve tank instantly, and an indicator shows you it's time to refill — no gas interruption, no going outside in the cold. Two names dominate this category. Here's the honest comparison.
Why two-stage matters
A two-stage regulator drops tank pressure in two steps, holding the standard 11″ water-column appliance pressure steady as tank pressure and temperature swing. Single-stage regulators are fine for a BBQ; a camper's furnace, fridge, and water heater run better on two-stage regulation — which is why every serious RV regulator in this class is two-stage.
Flame King KT12ACR6 — what we stock
The KT12ACR6 is Flame King's dual-tank auto-changeover kit, and the unit we stock is the genuine article — complete in the box with the protective cover, long mounting bracket, and two 12″ pigtails, so a swap from a failed regulator is one trip to the tank locker. Flame King is one of the two standard names in RV propane, and we keep it priced below the big-box stores, shipped free with free 30-day returns from Upland, CA.
Camco 59005
Camco's double-stage auto-changeover is the other standard pick, rated 210,000 BTU/hr on the service side and 130,000 BTU/hr on reserve, with 1/4″ SAE inverted-flare inlets and a 3/8″ NPT outlet. It's a quality unit with wide retail availability — an honest alternative. Check what's in the box when comparing: pigtails, bracket, and cover are sometimes separate purchases, which changes the real cost of the swap.
What about GasPro?
GasPro makes well-regarded single-tank two-stage regulators (POL or QCC inlet, 3/8″ NPT outlet). If your camper carries one tank and you don't need changeover, that's a legitimate simpler setup — but it's a different product class, not a dual-tank changeover.
Bottom line
Both the Flame King and the Camco will regulate your gas properly for years. Buy on completeness and price: the KT12ACR6 kit we stock arrives with cover, bracket, and pigtails included, free shipping, and free 30-day returns. Whichever you fit, have connections leak-tested with soapy water — and replace any regulator over about ten years old on principle.
FAQ
How do I know when the first tank is empty? The changeover indicator changes color; swap or refill the empty tank at your convenience while the reserve feeds the camper.
Do changeover regulators fit single-tank campers? Yes — connect one pigtail and cap the spare, or fit a single-tank two-stage regulator instead.
When should a regulator be replaced? If appliances burn weak or yellow, if it leaks, or roughly every 10 years — regulators age even when they look fine.