Replacement filters

Find your cartridge by type

Each cartridge type does a different job. Match the size first, then choose the type that deals with what you want to fix.

How the types differ

Most systems use more than one stage, each handling a different part of the job. Here's what each type is for.

Sediment or carbon?

Sediment cartridges (pleated or poly spun) catch dirt, sand, silt and rust. Carbon cartridges reduce chlorine, taste and odour. Sediment filters are a barrier for particles only: they don't remove dissolved substances or disinfect water.
Pleated or poly spun?

Pleated cartridges catch dirt on a large folded surface, so they hold plenty of sediment, and some can be washed. Poly spun cartridges trap fine sediment through the whole depth of the filter and are replaced, not cleaned.
What the micron rating means

It's the size of particle the cartridge catches. A 1 micron filter catches finer particles than a 20 micron one. Many systems use a coarser sediment cartridge first, then a finer one or carbon behind it.
When you need a specialty cartridge

Specialty cartridges target one problem, such as nitrate or fluoride, usually as an extra stage in a 10" Standard housing. Test your water first so you know what you need to reduce.