Quote:
Originally Posted by Scubawise
soory if big tank is out of gas and you have the smaller 5 gal tank..you need to have that to hook up and use with this hose? in other words empty main tank and need gas?
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You can use a portable tank to supply your RV with propane by using one of these, yes. Thats why its called extend a stay. It isn't used to fill the RV's built in tank, just a secondary supply.