It’s fast, easy & safe! We stock 3.7kg and 8.5kg gas bottles. Gas Exchange Cylinders are the perfect solution for your BBQ, outdoor gas heating, caravan and portable camping needs. No waiting to have your gas bottle refilled. Simply swap for a fresh gas bottle every time. Your gas bottle is inspected and tested to Australian standards. You can swap any brand of BBQ bottle at Diamond Valley Mitre 10. Once you have a SWAP’n’GO bottle you never have to worry about checking test dates again.