20x4.5 Granular activated carbon Water Filter — 5 Micron
A 5-micron granular activated carbon (gac) cartridge for any standard 20x4.5 housing. Removes chlorine taste & odour. High-flow carbon stage for taste and odour with less pressure drop than a carbon block.
Other filter types this size
FAQ
What does a 5 micron granular activated carbon filter remove?
This 5-micron granular activated carbon (gac) removes chlorine taste & odour. High-flow carbon stage for taste and odour with less pressure drop than a carbon block.
Will a 20x4.5 cartridge fit my housing?
Yes if your housing is the standard 20x4.5 size (20" Big Blue). Cartridges are universal by size — any 20x4.5 cartridge fits any 20x4.5 housing regardless of brand. Match the length, diameter and micron.
How often should I change it?
Change every 3 months. Hard or dirty water shortens that; a pressure drop or returning taste/odour is your cue to swap sooner.
Which micron rating should I choose?
Lower micron = finer filtration but faster clogging. For granular activated carbon, the listed micron is the standard for this type.