Pre-Filter Cartridges
4.5" x 20" Carbon Block Filter - 5 Micron (Big Blue)
SKU PW-FLT-CB20X4
$86.90incl. GST
In stock · ready to ship
High-capacity 5 micron carbon block in the Big Blue size, made for high-flow and multi-membrane pure water setups. The larger diameter gives more carbon, more flow and longer life than slimline cartridges.
- Size: 4.5" x 20" (Big Blue)
- Media: carbon block
- Rating: 5 micron
- Fits: standard 20" Big Blue housings
- Removes: chlorine, sediment and fine particles ahead of the RO membrane or DI resin
Why it matters: chlorine damages RO membranes, so change this filter regularly, and sooner if you notice the flow dropping off.