12-inch RV and trailer propane pigtail hose for connecting a Type 1/QCC propane cylinder to a compatible 1/4" inverted flare inlet regulator.
The Flame King E12INPT is a 12-inch propane pigtail hose designed to connect a refillable propane cylinder to a compatible RV or trailer propane regulator. It uses an ACME / Type 1 / QCC cylinder nut on one end and a 1/4" inverted male flare connection on the regulator end.
This hose is commonly used with RV automatic changeover regulators that require inverted flare pigtails, including Flame King’s ACR-2 regulator. It should not be used where a 1/4" NPT pigtail is required.
Compact pigtail length for close-mounted RV propane cylinders and regulators
Type 1/QCC cylinder nut to 1/4" inverted male flare regulator connection
Includes thermal protection and excess-flow protection
For compatible RV and trailer propane regulator setups
Flame King E12INPT uses a 1/4" inverted male flare regulator connection, not 1/4" NPT. Do not use thread sealant on flare fittings. Verify the regulator inlet fitting before ordering.
Turn off the propane cylinder before installation. Connect the ACME / Type 1 end to the propane cylinder and the 1/4" inverted flare end to the matching regulator inlet. Hand-tighten the cylinder connection and tighten flare fittings according to accepted propane service practices. Leak-test all connections with approved leak detection solution before use.
Package Contents: • 1 Flame King E12INPT 12" propane pigtail hose NOT Included — May Also Need: • Propane regulator • Propane cylinder • Second pigtail hose for dual-tank setups • LP gas fittings or adapters • Leak detection solution This listing is for the pigtail hose only unless otherwise stated.
Confirm the regulator inlet is 1/4" inverted flare, not NPT. Also verify that the 12" hose length is long enough for the cylinder tray, regulator bracket, and tank spacing without pulling, kinking, or rubbing.
Propane is flammable. Turn off gas before installation, use only compatible LP gas fittings, never use thread sealant on flare fittings, and leak-test all connections before use. If propane odor is detected, shut off propane if safe, ventilate the area, avoid ignition sources, and have the system inspected before use.