A to Z Diving & Cylinder Services exists to service the SCUBA Diving, LPG and Industrial Gas market of the Bay of Islands. It is the supplier of Dive consumables to Dive Centres nationwide as well as providing a professional level of servicing for the Northland region in the areas of tank testing and gas delivery while providing SCUBA gear servicing and tank testing. Service technicians are qualified in the servicing of all major brands of dive gear (as well as the majority of other brands).