And connects to a 1" x 20 Female Throwaway Cylinder Thread. So, you can refill the 1lb propane bottle from 20-50Lb propane tank directly without having to move or carry the large tanks easily. Upgraded Propane Refill Hose : Upgraded propane extension filling hose newly designed with colorful dial gauge, which matchs with tank gauge level indicator and allows you to read and monitor the gas level without necessarily removing the tank, and can detect the leaks.
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