Need to hook up an extra propane or butane gas cylinder in your motorhome? Screw the bottles onto the two standard POL female connections, then screw your feed hose to the Double-Up's male connection. Voila! (But don't forget your gas spanner).
This POL-threaded tee has 1x male POL thread and 2x female POL threads, so you can easily add in that extra gas cylinder for the extra capacity you need.




