Dryden

Single Handle Bathroom Faucet with Touch2O.xt® Technology

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551T-SS-DST is rated 3.4 out of 5 by 10.
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  • 1 or 3-hole 4" installation
  • Includes deck plate to support 3-hole installation
  • Featuring Delta Touch2O Technology: touch it on, touch it off
  • WaterSense® Labeled
Finish: Stainless
List Price*: $533.35
Base Parts
551T-SS-DST
List Price*: $533.35
Touch it on. Touch it off. Or go completely hands-free. Delta® Touch2O.xt® Technology helps keep your bathroom clean by giving you three ways to operate your faucet: manually with the handle, with a simple touch anywhere on the spout or handle, or by placing your hands near the faucet. The high-tech capacitance sensing capabilities of Touch2O.xt faucets allow the flow of water to be activated by breaking the capacitance field anywhere around the device, unlike traditional hands-free infrared sensors which require your hands be in a particular place and are sensitive to lighting conditions and clothing and skin color. Delta® faucets with DIAMOND™ Seal Technology perform like new for life with a patented design which reduces leak points, is less hassle to install and lasts twice as long as the industry standard*. You can install with confidence, knowing that Delta faucets are backed by our Lifetime Limited Warranty. Delta WaterSense labeled faucets, showers and toilets use at least 20% less water than the industry standard—saving you money without compromising performance. *Industry standard is based on ASME A112.18.1 of 500,000 cycles.
  • Operate hands-free by placing your hands near the faucet, with just a touch anywhere on the spout or handle, or manually using the handle
  • Helps keep your faucet cleaner, because washing the mess off your hands shouldn't involve making a mess of your faucet
  • Automatic water flow shut-off after two minutes helps conserve water
  • Battery operated 6 AA (included) with a battery life of approximately 1 year or 6 C (not included) with a battery life of approximately 3 years
  • Optional A/C adapter EP73954 may be ordered separately
  • DIAMOND Seal Technology is less hassle to install and helps your faucet perform like new for life, reducing leak points and lasting twice as long as the industry standard
  • Everything you need is together in one convenient box, including integrated InnoFlex® PEX supply lines
  • 1 or 3-hole 4" installation
  • Plastic pop-up
  • ADA Compliant
  • WaterSense® labeled faucet uses at least 20% less water than the industry standard without compromising performance
  • Rigid spout

Installation Information


1 or 3-hole 4" installation


  • Escutcheon: Optional Escutcheon Included
  • Flow Rate: 1.20 gpm @ 60 psi, 4.5 L/min @ 414 kPa
  • Spout Height: 8-1/4"
  • Spout Length: 5-3/8"
  • Fittings Type: 3/8" compression fittings
  • Drain Type: Plastic pop-up
  • Supply Lines: Included InnoFlex® Pex-C Supply Lines
  • Valve Type: Electronic with DIAMOND Seal Valve
Rated 2 out of 5 by from FRUSTRATING I bought a house with remodeled bathrooms that have the touchless faucets and toilets. I think the folks that invented these must have stock in Duracell batteries!! I have replaced the batteries in my bathroom sink 2 times now and they are dead again...and we have only owned the house for 4 months!! The battery pack is a stinker to get to due to the type of cabinet that was installed...I have to remove the drawers (and everything in them before I do that!). I am too old to be crawling under sinks to do this....what a pain. HOW do i disconnect the the battery permanently???
Date published: 2019-09-15
Rated 5 out of 5 by from Great quality This faucet is heavy duty and not like one you’d buy from menards/Lowe’s. Would definitely recommend! [This review was collected as part of a promotion.]
Date published: 2019-08-20
Rated 5 out of 5 by from Incredible This faucet is incredibly solid with an elegant appearance and an amazing hands free technology. I put two in a clients master bathroom and everyone at the job was trying it! Way to go Delta!
Date published: 2019-08-19
Rated 5 out of 5 by from great features We got this about 2 months ago and I love the faucet.
Date published: 2019-03-29
Rated 4 out of 5 by from Great features I have had my touch for 3 or 4 years now I Love it , I only use the touch part the touchless part no longer works. Not sure why it has both on there only wanted the touch. Have changed the batteries only one time. I am getting ready to remodel my other bathroom and I will be buying one of these to be installed.
Date published: 2019-02-15
Rated 3 out of 5 by from Looks nice, LED Water temp indicator is nice, drip Too many hoses and wires down the single center hole, needs some way to organize them so that they don't rub against the drain lever linkage, one of the lines that connects to the solenoid is too short making the issue with the drain lever linkage even worse. The Solenoid leaked after one day and would either drip or leave a constant stream of water when the water was supposed to be stopped, a replacement was shipped to me and after a few days it is working better but I have seen it drip sometimes when it should be off, most of the time the water does shut off completely. I guess we shall see over time how long it lasts. Maybe the solenoid requires cleaner water than my town provides, there is a small screen in the solenoid input, maybe an in-line filter like the kind used for ice makers would help but I see no way to hook up something like that to the faucet. I do like the look of the faucet and I like the LED that is blue with cold water and turns purple when the water gets warm.
Date published: 2018-05-09
Rated 2 out of 5 by from Beautiful style But I WANT it in AGED PEWTER!
Date published: 2018-03-04
Rated 1 out of 5 by from Great looking faucet, but only worked for a couple of weeks Great looking faucet, but the touch feature stopped working after only a couple of weeks. Wish we had of spent a little more money for a touch faucet that really worked or not purchased a touch faucet at all. When the touch feature was working the faucet would also turn itself on and off when no-one was in the washroom.
Date published: 2016-02-21
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Is it possible to lengthen to time before the Dryden touch faucet automatically turns off?

I have a Delta touch faucet in the kitchen, and the water runs for 4 minutes before the faucet turns off. By comparison, my Delta touch faucet in the bathroom only runs for one minute. It takes about 3 minutes for my hot water to get to the bathroom. Therefore, I have to keep running back into the bathroom every minute to touch the faucet until the water gets hot. Can this one-minute shut-off be adjusted to a longer time? Thank you!
Asked by: Leesa
Hi Leesa, Thank you for your question. There is not a way to adjust the 1 minute run time on the model 551T-PN-DST faucet. This time frame is used as it would prevent the sink from overflowing if the drain stop is closed. Thanks, Dave
Answered by: DeltaFaucet2
Date published: 2014-08-25
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