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 I-Series>> Under sink / Inline water filtration systems >> model: Doulton QT100

inline water filter quick changefilter
doulton inline/undersink quick change quarter turnfilter

QT100 Quarter- turn/Quick-change Under sink or Inline Water Filter $199.00

Easy and fast Quick Change water filtration system featuring Doulton's new auto shut-off and quarter turn action design. The world renown, 4-stage, Doulton Ultracarb NSF is fitted within this new and innovative filter housing, insuring that your water is safe from suspended solids, chemical, microbiological, heavy-metal, particulate and lead. Consumers brochure (PDF)

doulton inline/undersink water filterAn ideal system for those looking to upgrade their current HIP-UC or IP100 filtering system, as well as new consumers consciously seeking an easy to operate water filter system, whether it be for under sink or inline (fridge/ice maker or cooler) applications.

QT100 System Advantages:

  • Extreme filtration against unwanted impurities (leaves beneficial minerals)
  • Quick connect/disconnect
  • Easy to operate
  • Sanitary changeover of filter elements
  • Auto-shut-off
  • Cleanable ceramic filter element; Ultracarb (though should still be replaced every 600 gallons)
  • Eco Friendly: Limited waste (80% less than other similar type systems)
  • Ceramic comprised of natural earth minerals
  • 3 years limited warranty on parts (excluding candle)
  • No electricity needed to operate
Under sink QT system comes complete with QT filter, choice of luxury or standard faucet, and Installation kit. No sales tax outside Michigan.

Doulton QT 100 Enhanced Kit with Luxury Faucet $249:
Euro style faucet in chrome

Add DOULTON QT100 DELUXE to Cart, select deluxe faucet in cart
QT100 Water filtration system with Enhanced Kit and Luxury faucet
  • Quarter turn ceramic disc valve
  • Spout swings 360 degrees
  • Solid lead-free brass body
  • 3 years drip-free warranty

QT 100 Basic Kit with Standard Faucet $199:
Water filter installation kit

Add DOULTON QT100 to Cart, select standard faucet in cart
Doulton QT100 water filter with basic installation kit and standard faucet
  • Spring loaded plastic lever
  • 1 year drip-free warranty
Spare replacement Ultracarb candle CN-UC 2"x10" (S) threaded mount filter with extruded carbon core and ATS media for heavy metals reduction inside Sterasyl shell (a.k.a. CU1200)
$55.00 for 1

$52.50/ea for 2

$48.00/ea for 4 

Filter Technical Specs:

  • 3/8" push-fit ports, 1/4" for fridge/cooler/inline
  • Flow rate: 0.5 GPM @ 45 psi
  • Dimensions: 13.5"(H)x3.5"(W)x4"(D)
  • Cartridge Capacity: 600 Gallons (6 months based on 4 person household)

QT filter cartridge replacement video


No more difficult laboring under the sink! The most user friendly under counter water filter yet!

Doulton has produced some of the most powerful and reliable systems on the market since 1927 and the commitment to improve the products is always a top priority. Listening to the consumers, we have certainly been able to better gauge which products present the most opportunity for improvement and in what areas. A traditional under sink filter has always presented the possibility of being over-tightened, therefore, difficult to reopen from under sink. This new design will resolve the difficulties of cleaning or changing out the filter.

Exclusive Doulton's silver/ceramic technology reduces >99.99% of particles 0.2 micron and larger in size including pathogenic bacteria such as E.coli, salmonella etc.

Reduces dirt, chlorine taste and odor, mold, algae and removes 100% Cryptosporidium and Giardia cysts.

An economical alternative to bottled water, reverse osmosis, distillation and ultra-violet technologies.

inline water purification system drinking water

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