CA Ware K5633-C-Q 10" x 2" Granular Activated Carbon Filter w/ 1/4" Quick-Connect Fittings Made with Premium Coconut Shell Activated Carbon Maximum Flow: 0.75 GPM (2.84 L/min.) Maximum Pressure: 125 PSI (8.61 bars) Service Life: 1500 gallons (5678 L)