Converts Type 1 Connection x 1/4 Inch Male Pipe Thread to QCC1/Type1 Excess flow protection-Safety plastic cap pops off if damaged stopping flow of propane High quality solid brass construction makes it corrosion resistant Connect a 20lb-30lb propane tank to your regulator/hose assembly Easy to connect attachment, no tools required QCC1 Propane Adapter Gas Regulator Valve Fitting