
Doulton-(W9330229) Doulton QT Under Counter System w/ UltraCarb Candle
Doulton W9330229 QT Under Counter System with UltraCarb Candle
Quarter-turn ceramic filtration system that combines gravity-fed purification with modern convenience. No electricity, minimal waste, maximum protection.
Natural earth ceramic meets engineered convenience
Quarter-Turn Changeover
Automatic water shut-off when you twist to remove the candle. No flooding, no tools, no stress during filter replacement.
Ceramic UltraCarb Element
Natural earth mineral ceramic removes bacteria, cysts, chlorine, lead, and taste issues while leaving beneficial minerals intact.
80% Less Waste
Cleanable ceramic surface extends life and reduces landfill impact compared to disposable cartridge systems.
Gravity-Fed Design
No electricity, no pumps, no drain line. Works entirely on water pressure with zero ongoing energy cost.
Food-Grade Housing
Built-in mounting bracket and quick-connect fittings make under-sink installation straightforward and sanitary.
Works with all Doulton ceramic candles
The W9330229 housing accepts any Doulton threaded ceramic filter candle, including UltraCarb, SuperCarb, and SuperSterasyl elements. System includes one Doulton UltraCarb candle. Replacement model: W9330958 or equivalent Doulton ceramic candle.
Cleanable ceramic extends replacement intervals
Surface Cleaning
Gently scrub the ceramic surface with a soft brush or Scotch-Brite pad to remove accumulated sediment and restore flow rate.
UltraCarb Replacement
Replace the Doulton UltraCarb candle when taste or flow diminishes, or after approximately 600 gallons of filtered water.
Housing Inspection
Wipe down the interior of the food-grade housing and check O-rings and seals for wear during each candle replacement.
Pathogen Reduction
Removes bacteria, Cryptosporidium, and Giardia cysts without chemicals or UV
Mineral Retention
Ceramic filtration preserves healthy calcium and magnesium for taste and nutrition
Silent Operation
No pumps, no drain noise, no backflush cycles—just continuous quiet filtration
Space Efficient
Compact under-sink footprint with integrated mounting bracket for secure installation
Doulton W9330229 QT Under Counter System with UltraCarb Candle
Quarter-turn ceramic filtration system that combines gravity-fed purification with modern convenience. No electricity, minimal waste, maximum protection.
Natural earth ceramic meets engineered convenience
Quarter-Turn Changeover
Automatic water shut-off when you twist to remove the candle. No flooding, no tools, no stress during filter replacement.
Ceramic UltraCarb Element
Natural earth mineral ceramic removes bacteria, cysts, chlorine, lead, and taste issues while leaving beneficial minerals intact.
80% Less Waste
Cleanable ceramic surface extends life and reduces landfill impact compared to disposable cartridge systems.
Gravity-Fed Design
No electricity, no pumps, no drain line. Works entirely on water pressure with zero ongoing energy cost.
Food-Grade Housing
Built-in mounting bracket and quick-connect fittings make under-sink installation straightforward and sanitary.
Works with all Doulton ceramic candles
The W9330229 housing accepts any Doulton threaded ceramic filter candle, including UltraCarb, SuperCarb, and SuperSterasyl elements. System includes one Doulton UltraCarb candle. Replacement model: W9330958 or equivalent Doulton ceramic candle.
Cleanable ceramic extends replacement intervals
Surface Cleaning
Gently scrub the ceramic surface with a soft brush or Scotch-Brite pad to remove accumulated sediment and restore flow rate.
UltraCarb Replacement
Replace the Doulton UltraCarb candle when taste or flow diminishes, or after approximately 600 gallons of filtered water.
Housing Inspection
Wipe down the interior of the food-grade housing and check O-rings and seals for wear during each candle replacement.
Pathogen Reduction
Removes bacteria, Cryptosporidium, and Giardia cysts without chemicals or UV
Mineral Retention
Ceramic filtration preserves healthy calcium and magnesium for taste and nutrition
Silent Operation
No pumps, no drain noise, no backflush cycles—just continuous quiet filtration
Space Efficient
Compact under-sink footprint with integrated mounting bracket for secure installation
Original: $238.05
-65%$238.05
$83.32Description
Doulton W9330229 QT Under Counter System with UltraCarb Candle
Quarter-turn ceramic filtration system that combines gravity-fed purification with modern convenience. No electricity, minimal waste, maximum protection.
Natural earth ceramic meets engineered convenience
Quarter-Turn Changeover
Automatic water shut-off when you twist to remove the candle. No flooding, no tools, no stress during filter replacement.
Ceramic UltraCarb Element
Natural earth mineral ceramic removes bacteria, cysts, chlorine, lead, and taste issues while leaving beneficial minerals intact.
80% Less Waste
Cleanable ceramic surface extends life and reduces landfill impact compared to disposable cartridge systems.
Gravity-Fed Design
No electricity, no pumps, no drain line. Works entirely on water pressure with zero ongoing energy cost.
Food-Grade Housing
Built-in mounting bracket and quick-connect fittings make under-sink installation straightforward and sanitary.
Works with all Doulton ceramic candles
The W9330229 housing accepts any Doulton threaded ceramic filter candle, including UltraCarb, SuperCarb, and SuperSterasyl elements. System includes one Doulton UltraCarb candle. Replacement model: W9330958 or equivalent Doulton ceramic candle.
Cleanable ceramic extends replacement intervals
Surface Cleaning
Gently scrub the ceramic surface with a soft brush or Scotch-Brite pad to remove accumulated sediment and restore flow rate.
UltraCarb Replacement
Replace the Doulton UltraCarb candle when taste or flow diminishes, or after approximately 600 gallons of filtered water.
Housing Inspection
Wipe down the interior of the food-grade housing and check O-rings and seals for wear during each candle replacement.
Pathogen Reduction
Removes bacteria, Cryptosporidium, and Giardia cysts without chemicals or UV
Mineral Retention
Ceramic filtration preserves healthy calcium and magnesium for taste and nutrition
Silent Operation
No pumps, no drain noise, no backflush cycles—just continuous quiet filtration
Space Efficient
Compact under-sink footprint with integrated mounting bracket for secure installation














