12-inch RV Pigtail Propane Hose QCC1 Connector and a 1/4 Inverted Male Flare

12-inch RV Pigtail Propane Hose QCC1 Connector and a 1/4 Inverted Male Flare

Key Features

• Length: 12 inches
• Hose Material: Thermo-plastic rubber or braided stainless steel
• Inlet Connector: QCC1 (Type 1) nut for hand-tightening on 20 lb and 30 lb propane cylinders
• Outlet Connector: 1/4 inch inverted male flare
• Maximum Working Pressure: 350 PSI
• Safety: Integrated excess flow protection and thermal shut-off device

Replaces / Cross-Reference Part Numbers

• Replaces cracked, leaking, or age-damaged 12-inch pigtail hoses with identical QCC1 and 1/4 inch inverted male flare fittings.
• Direct replacement for pigtail hoses used on many automatic changeover two-stage regulators.

Compatibility & Fitment

• Connects standard 20 lb and 30 lb DOT propane cylinders to RV or trailer two-stage regulators.
• Fits regulators and four-port brass tees that require a 1/4 inch inverted male flare inlet.
• Commonly used for dual propane tank setups on travel trailers, fifth wheels, and campers.

When to Replace

• Visible signs of wear such as cracks, brittleness, cuts, or abrasions on the hose.
• Leaking gas detected by smell or a soapy water test at the connection points or along the hose body.
• Corrosion on brass fittings that prevents a secure, leak-free seal.
• As part of periodic maintenance, typically every 5 to 7 years, regardless of appearance.

Installation Tips

• Ensure the propane cylinder valve is fully closed before starting removal or installation.
• Hand-tighten the QCC1 nut onto the propane cylinder valve; do not use tools on this plastic fitting.
• Use appropriate wrenches to tighten the 1/4 inch inverted flare fitting onto the regulator or tee. Use a second wrench to hold the regulator inlet fitting to prevent damage.
• After installation is complete, open the cylinder valve slowly and check all connections for leaks using a non-corrosive gas leak detector solution.
• Route the hose to prevent kinking, sharp bends, and contact with sharp edges or sources of high heat.