This Cavagna propane pigtail hose is purpose-built for dual-cylinder RV setups. It connects propane cylinders to two-stage automatic changeover regulators or standard two-stage regulators with "T" check connections. With an integrated thermofuse and excess-flow protection, it adds a critical layer of safety to your LP system -- all in a compact 12-inch length that keeps your propane bay tidy.
Pigtail hoses are the working connection between your propane cylinders and your regulator. The Cavagna 50-A-190-0032 is not a generic hose -- it is designed specifically for dual-cylinder RV configurations where an automatic changeover or two-stage regulator with "T" check connections is used. One end features a standard Acme nut that threads onto a POL-style or Acme-threaded propane cylinder valve; the other end is a 1/4" male inverted flare that connects to the regulator inlet or "T" fitting.
At 12 inches, this is a short-run pigtail intended for installations where the cylinder is mounted close to the regulator -- typical of tongue-mounted dual-cylinder brackets on travel trailers, fifth wheels, and Class A motorhomes. The 1/4" inner diameter is the standard bore for RV propane pigtails at this length and flow demand.
A built-in thermofuse shuts off gas flow automatically if the hose temperature exceeds 240 deg F -- critical protection in the event of fire near the propane compartment.
If the hose ruptures or is accidentally disconnected, gas flow is automatically limited, reducing the risk of uncontrolled LP release at the cylinder connection.
The Acme nut end connects to standard propane cylinder valves used on most DOT cylinders found on RVs -- no tools required to connect or disconnect at the cylinder.
Meets UL and CGA safety standards for LP gas service. Required by many RV manufacturers and inspectors for compliant propane system installations.
This pigtail is designed for use with:
Both pigtails in a dual-cylinder setup should be replaced as a pair. If one hose shows cracking, brittleness, or discoloration, replace both before the next trip.
Hand-tighten the Acme nut onto the cylinder valve first, then use a wrench to snug it -- Acme fittings do not require thread sealant or tape. The 1/4" male inverted flare end connects to your regulator "T" or inlet port; use two wrenches (one to hold the regulator fitting, one to tighten the hose nut) to avoid stressing the regulator body.
Note: Regulator, cylinder, and any additional fittings are not included. If replacing both pigtails in a dual-cylinder system, order two units.