Propane Quick Connect Conversion Kit for Weber Q Series & Traveler Gas Grills - Universal Adapter with Safety Lock, Durable Brass Fitting (Compatible with Q100, Q200, Q300, 1200, 2200)

The 1 lb tanks screw directly into the regulator. If you want to use larger tanks on a regular basis you need to unscrew the regulator and get a fitting that adapts whatever hose connection you have to 1/8" NPT. Example: https://a.co/d/0iTgWZTq