This cartridge set is suitable for the 021-4s system. These catridges are changed every 6-12months depending on usage. They are also suitable for many other brands of systems aswell.
Includes: NSF listed 1 micron polyspun sediment cartridge, Matrikx CTO/2 extruded carbon block 5 micron cartridge & Omnipure CL10RO-T33 high purity GAC carbot post filter cartridge.
![PLEATED SEDIMENT FILTERS [9 ¾ X 4.5]-0](https://i1.wp.com/www.costwise.com.au/wp-content/uploads/2015/06/product_1_3_1366808620-300x300.jpg)