The Mr. Heater 18IN Propane Acme Flexible Pigtail hose is designed to effortlessly connect your propane tank to auto change-over dual-stage regulators. This hose features an Acme nut on one end and a 1/4IN inverted male flare on the other, ensuring a reliable connection. The solid brass fittings offer durability and corrosion resistance, making it the perfect choice for dependable performance in any setting.