Outdoor Economic Propane Refill Adapter

Product information: Product Feature: 100% Brass Purchase is for 1 Adapter Only Propane Tank Refill Adaptor Female throwaway cylinder thread x Soft Nose P.O.L For personal use only Refills 1 lb. bottles in 1 minute or less so quick Works with all 20, 30, or 40 Pound 50,Cylinders With this adapter you are not able to overfill the smaller bottles it will only put in the tank as much as it can hold, you are also able to back fill into larger tank if you got in a situation where your larger tank