Replacement Cartridges
Keep your filter working well with the right replacement. Shop single cartridges, or kits with everything you need for a full change.
How to choose
- Buying for a whole-house system? A replacement kit is usually the easiest option. It has the right cartridge for each stage.
- Only one cartridge needs changing? Buy it on its own from the single cartridges.
- Measure your old cartridge or check the code printed on it. Sizes are 10" Jumbo, 20" Jumbo, 10" Standard, 20" Standard and Inline/Quick Connect.
- Have a UV system? Choose a lamp and filter kit so the lamp gets changed at the same time.
Common questions
How often should I change my filter cartridges?
Most cartridges are changed every 6 to 12 months, depending on your water and how much you use. Fridge filters are usually every 6 months.
How do I know what size I need?
Check the code on your old cartridge or measure it. Jumbo cartridges are wider than Standard. The length is usually 10" or 20".
Do you sell compatible cartridges as well as genuine ones?
Yes. We stock genuine brands like Davey and Waimana Water, plus compatible options for many popular systems. The product page says which is which.
I can't work out which one I need. Can you help?
Yes. Email us a photo of your old cartridge and we'll point you to the right one.
Still not sure which one you need?
Answer a few quick questions, or email us a photo of your old cartridge and we'll point you to the right one.