Propane Refill Adapter, Lp Gas Cylinder Tank Coupler - Fits Qcc1 or Type1 Propane Tank And 1 Lb Throwaway Disposable Cylinder Propane Bottle Connector f26 SAFETY - Built in safety feature that will ensure you never over-fill your smaller tank. Well-constructed, built Heavier, Bigger, and Safer.Cuts off gas flow automatically when pressure is reached (rubber ring allows for proper seal) EASY INSTALL - No others tools required and easy to install with handheel grip for tightening. CORROSION RESISTANT - solid brass construction provides secure and airtight connection for your security GREAT FOR - Camping, tailgating, heating needs,cooking outdoor and much more. Running out of fuel from a 1lb propane tank will not be a problem anymore, this adapter could refill your 16oz 1lb propane tanks with larger propane tanks. REFILL EASILLY - Fits all refillable green 1 lb propane grill cylinder bottles and fill easily and quickly. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.