Firing up the barbie or heating the sitting room has never been easier. With Z Swap ‘n’ Go, you just swap your empty nine-kilogram gas bottle for a safe, pre-filled bottle. No hassle, no hanging around and it means you get an inspected, tested and safely filled bottle every time. FAST – SAFE – EASY. And the great news is, we have LPG Swap ‘n’ Go at nearly every Z site across New Zealand.