Please Note: that before using this hose, please remove the regulator from your rv, traileror or propane tanks. The hose is only used for low pressure system, the 1 lb connection and the pressure relief valve on the grill itself will restrict gas flow, so our hose is recommended for grills that only use one burner. Otherwise the product may not work. Dual Usage: The first way: you have to remove the regulator on RV and put the 1/4'' quick disconnect plug to hook directly to low pressure line on RV trailer, the other side connects 1 lb portable appliance. ►The second way: if your grill has 3/8"" female flare nuts, then you can direct connect the RV to your grill. (Note: If you already have a regulator on your appliance, you need to remove regulator on your RV, otherwise, it will result in no flames.) Easy to Install: Equipped with hand-tighten hand wheel, this RV grill quick connect hose is easy and quick to install without any tools. It is easy for you to convert your one pound propane tank to a quick connect camping grill on your rv, which saves your time. Perfect fit for camp chef stoves, fire pits, BBQ grills & griddles, smokers, heaters or other LP appliances. (if appliance has a regulator, neet to remove RV regulator.) Premium quality: Our 12FT rv quick connect propane hose is made with high quality materials, providing a longer lifespan than typical propane hoses on the market. 1/4"" male plug to 3/8"" female flare nuts ,1'' X 20lb fenake throwaway adapter fitting are made of 100% solid brass fittings. Additionally, propane hose is constructed with 4-layer hose construction for hose strength, combining braided stainless steel and durability of high-quality flame-retardant PVC and flexibility of high-tensile cotton to outdistance other RV propane hoses. It is CSA certified to ensure a secure connection and prevent any leaks during operation. 24 Hours Support: our propane Hose have CSA certification, We provide 24 hours service.If you have any questions after receiving the product, you can contact us. Any quality problems arising from normal use within 1 year please contact us. Please Note: that before using this hose, please remove the regulator from your rv, traileror or propane tanks. The hose is only used for low pressure system, the 1 lb connection and the pressure relief valve on the grill itself will restrict gas flow, so our hose is recommended for grills that only use one burner. Otherwise the product may not work. Please Note: that before using this hose, please remove the regulator from your rv, traileror or propane tanks. The hose is only used for low pressure system, the 1 lb connection and the pressure relief valve on the grill itself will restrict gas flow, so our hose is recommended for grills that only use one burner. Otherwise the product may not work. Easy to Install: Equipped with hand-tighten hand wheel, this RV grill quick connect hose is easy and quick to install without any tools. It is easy for you to convert your one pound propane tank to a quick connect camping grill on your rv, which saves your time. Perfect fit for camp chef stoves, fire pits, BBQ grills & griddles, smokers, heaters or other LP appliances. (if appliance has a regulator, neet to remove RV regulator.) Premium quality: Our rv quick connect propane hose is made with high quality materials, providing a longer lifespan than typical propane hoses on the market. 1/4"" male plug to 3/8"" female flare nuts ,1'' X 20lb fenake throwaway adapter fitting are made of 100% solid brass fittings. Additionally, propane hose is constructed with 4-layer hose construction for hose strength, combining braided stainless steel and durability of high-quality flame-retardant PVC and flexibility of high-tensile cotton to outdistance other RV propane hoses. It is CSA certified to ensure a secure connection and prevent any leaks during operation. It's durable, flexible, sturdy, weather/wear/leak resistant, and has a long service life. Quality service: 100% Full refund. If you don’t like our product or they are not what you want, please don’t rush to leave a comment, contact us as soon as possible, we will return the product or compensate you in full, the highest customer satisfaction and experience is our unlimited pursuit.