CC1E extended service cartridge contains radial flow granular activated carbon (GAC) 

5 GPM, 15,000 Gallon Capacity. 

Change cartridge on a regular six (6) month preventative maintenance program. 

Change cartridge when capacity is reached (15,000 gallons or 56,715 L) or when flow becomes too slow.

Change cartridge when the difference between the inlet pressure and the system outlet gauge is greater than or equal to 20 psi (104 bar).

Service flow rate must not exceed 5.0 gpm (19 Lpm).

Always flush the filter cartridge to drain for fifteen minutes at time of installation and cartridge change.