Carbon Block Filter (7100447)
by Watts Water
The 20 inch 5 nominal micron carbon block uses top of the line coconut shell housing. It is NSF standard 42 certified. This low cost carbon block filter outperforms granular activated carbon cartridges in chlorine reduction, lower pressure drop, lower cost and offers no water channeling. It offers a long life of up to 8,000 gallons at 2 gallons per minute flow rate.