The 4FC replacement cartridge contain a proprietary Fibredyne media. Half micron particulate reduction, bacteriostatic. NSF certified std. 42 & 53. Fabulous capacity and flow rate. The 7FC is the upgrade cartridge if you are looking for increased capacity.
- Capacity: 15,000 gallons (56,781 L)
- Maximum Flow: 2.5 gpm (9.5 Lpm)