Propane Adapter That Saves Money - Gas One's propane refill adapters allow you to refill your traditional 1lb green propane tanks with fuel from standard 20lb propane tanks. An Ultimate Propane Adapter Built with the intention of reducing the cost of resources used; We can't remember the last time an RV Propane Adapter, Propane Hose Adapter, and/or Propane Tank Adapter saved you so much money! STURDY AND DURABLE - Made of brass to ensure long product life as well as durability with constant use. Won't wear out and/or fall apart using Gas One's Propane Refill Adapter is rugged, reliable, rust-free operation. Corrosion-resistant brass that provides a secure, leak-proof fit Extremely durable and precise threads - the refill adapter holds firmly and connects efficiently to 1 and 20 lb propane tanks. There are no gas leaks, and the solid bra materials of the adapter ensure longevity as well as universal use. Simply use it to refill your 1lb propane tanks with larger propane tanks you have in stock. No connection issues with its easy-to-use package allowing for a comfortable and smooth overall experience