Omnipure - Q5421-P - 8" x 2.5" Q-Series Twist Off Carbon Block Filter w/ Phosphate - 10 Micron SMC (2680090) 850 Series Brass Check Valve ; 1/2" FNPT x 1/2" FNPT BUNA and cast iron sinks when

and cast iron sinks when proper drilling methods are used

Why This Gasket Kit Matters

} The Watts WQTCGAC-10 is a genuine 10-inch granular activated carbon pre-filter cartridge engineered specifically for Watts QT reverse osmosis systems

ADJUST Precision Tuning

This combination delivers more consistent performance over time compared to carbon-only cartridges

Omnipure - Q5421-P - 8" x 2.5" Q-Series Twist Off Carbon Block Filter w/ Phosphate - 10 Micron SMC (2680090) 850 Series Brass Check Valve ; 1/2" FNPT x 1/2" FNPT BUNA and cast iron sinks whenOmnipure Q Series Twist Off Replacement Filter Q5421 P 8" x 2. 5" Carbon Block Filter with Phosphate Scale Inhibitor 10 micron carbon block filtration with polyphosphate scale control in a twist on, twist off design for effortless filter changes Tool Free Installation Scale Inhibitor Media 1500 Gallon Capacity Multi Position Compatible The Omnipure Q5421 P combines activated carbon block filtration with polyphosphate scale inhibitor in a single twist