1High Pressure Resistance: The pigtail hose has excellent pressure bearing capability, can safely contain internal gas without worrying about sudden high pressure situations. 2Safe and Leakproof: Made of premium materials with high airtightness and strong erosion resistance to ensure no leakage, providing users with powerful safety protection. 3Dimensions: Length 15inch, 1/4NPT interface design, ensures seamless connection with most RVs, trailers, and campers, avoiding tedious adjustments during installation. 4Connection: The RV pigtail hose connector comes with an for ACME (Type 1/QCC) nut and a 1/4 inch inverted male flare that enhances its compatibility. 5Compatibility: Designed for 2 Stage Auto Changeover Regulator, making it a practical accessory for RV owners, enhancing their convenience and travel experience. 2 x Pigtail Hose Connector