The ongoing consumables are the ION Rods and will need replacing approximately every 3-4 years based on the average 40-50,000L / 10,500-13,200gal pool.
The OXI Cell will last approximately 5 years and will ultimately depend on the size of your pool.
Both the replacement Ioniser Rods and Oxidiser can be purchased from Naked Pools online HERE, via an email to sales@naked-pools.com or you can call us on 1800 625 331 Option 1 (Australia).