Watts-(A9231-ALLF) Granular Activated Carbon (GAC), Low-Fines Coconut Shell, 1 Cubic Foot, 27.5 Pound Bag 10 inch x 2.5 inch Inline Filters2692 Its 4-ring potentiometric design delivers

Its 4-ring potentiometric design delivers reliable readings across five decades of conductivity range using a single calibration point

Replace every 6–12 months or when you notice scale returning

Pressure Release Valve

Optional accessories include pressure gauges

Watts-(A9231-ALLF) Granular Activated Carbon (GAC), Low-Fines Coconut Shell, 1 Cubic Foot, 27.5 Pound Bag 10 inch x 2.5 inch Inline Filters2692 Its 4-ring potentiometric design deliversWatts Premium Filtration Media Watts A9231 ALLF Granular Activated Carbon Low fines coconut shell GAC for superior taste, odor, and organic contaminant removal in whole house and point of use systems Acid washed coconut shell carbon 1 cubic foot 27. 5 lbs Low fines formula High adsorptive capacity The Watts A9231 ALLF is a professional grade granular activated carbon media made from acid washed coconut shell, engineered for enhanced hardness and