Package includes:1* rv lp propane regulator hoses; Note: Our RV Propane Hose with 1/4" male NPT, NOT 1/4" inverted Male Flare. Our QCC1/Type1 pressure propane hose allows you to directly convert your rv regulator to 20 lb. or larger propane tank(5-40lb) . Our 3 feet hose and adapter is CSA certified to ensure air tightness and stability. Our 3 FT rv pigtail propane hoses easily connects to a 5-40lb LP gas tank with a camper's 1/4" NPT standard 2-stage regulator. Perfect for RV camping, travel trailer outdoor cooking, outdoor grilling and other needs. Safe & Durable, Our adapter stainless steel braided tubing is made of four layers of material that is not only more weather resistant, flame retardant, and tougher, but also resists animal bites and withstands a wide range of climates and temperatures without rupturing; Our adapters are made of 100% solid brass, which will not rupture during use, providing a tight, leak-free connection that is safer and more reliable. Convenient Installation, Our propane hoses and regulators are designed by easy installation, the QCC1/ Type1 propane tank adapter comes with a handwheel that can be easily tightened without tools. After-sales service, before and after the purchase you encounter any problems please contact us, we will provide you with a satisfactory solution.