Single Handle Kitchen Faucet with Spray

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4380-AR-DST is rated 4.1 out of 5 by 85.
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  • 3-hole installation
  • DIAMOND Seal Technology: a lifetime of reliable performance
  • Backed by Delta Faucet's Lifetime Limited Warranty
  • Water-Efficient
Finish: Arctic Stainless
List Price*: $553.05
Base Parts
List Price*: $553.05
Configurable Parts
  • DIAMOND Seal Technology features a valve embedded with diamonds to ensure like-new operation for the life of the faucet
  • Meets standards set by Americans with Disabilities Act
  • Includes convenient side sprayer
  • 3-hole 6-16 in. installation
  • High-arc spout swivels 180degrees for greater convenience
  • 45 in. long hose provides outstanding reach


Special Features

  • With Side Sprayer
  • ADA Compliant

Installation Information

3-hole 6"-16" installation

  • Flow Rate: 1.80 gpm @ 60 psi, 6.8 L/min @ 414 kPa
  • Spout Height: 13"
  • Spout Length: 10-1/2"
  • Deck to Outlet: 9-3/4"
  • Fittings Type: 3/8" compression fittings
  • Deck Thickness: 2.5"
  • Supply Lines: Included InnoFlex® Pex-C Supply Lines
  • Valve Type: DIAMOND Seal Valve
Rated 3 out of 5 by from Disappointed My wife received a replacement Delta Kitchen Faucet for a defective model. The new faucet is model 4380-AR-DST direct from Delta on April 17 2014. Over the last month we have noticed placement of the handle affects whether the faucet drips, runs on or actually shuts off. After reading installation paperwork I see I must purchase an entire valve assembly to fix the drip. I feel this product should have lasted longer than 4 and one half years.
Date published: 2019-01-02
Rated 5 out of 5 by from Replacement for a discontinued model We very happy with this faucet, it is very nice looking. We noticed it has better water pressure than the old model.
Date published: 2018-11-29
Rated 5 out of 5 by from The Best bought this item several years ago. Delta came through with the right parts and I fixed problem in no time. So thankful!
Date published: 2018-09-28
Rated 5 out of 5 by from Great features We're entirely pleased with the quality and features of this faucet set. We especially like the high arc of the faucet. The side sprayer works well and seems durable. It's not easy to find a side sprayer now, since pull-down sprayers have become more popular. This set meets our needs perfectly.
Date published: 2018-09-23
Rated 3 out of 5 by from Good color Searched everywhere to find replacement faucet for three holes in antique bronze. Works beautifully but very disappointed with the plastic piece covering the sprayer. Would have been so easy to make it bronze metal as well. Entire fixture now looks cheap
Date published: 2018-08-18
Rated 5 out of 5 by from Looks great, works great Purchased the Delta 4380-AR-DST Arctic Stainless Pilar Kitchen Faucet with Side Spray about 2 weeks ago. It looks good, works well and just feels sturdy when when using the product. I bought Delta, due to past experience and lifetime warranty.
Date published: 2018-07-11
Rated 1 out of 5 by from Constantly breaking. We had the Pilar faucet less than one year when the collar under the handle broke. We replaced it, and then it broke again. After replacing the collar a second time, now the spray attachment is broken. Due to system upgrades, I can't contact Delta to see if they will replace it. Meanwhile, we can't use our sink. Since I will be paying a plumber, AGAIN, to fix this faucet, I am hoping Delta will at least replace the part.
Date published: 2018-04-30
Rated 5 out of 5 by from looks great and installs smoothly. my son did the installation, which required removing the sink in order to be able to remove the old unit. but with the ease of installing the Delta faucet the entire job only took an hour and a half. very satisfied .
Date published: 2018-03-28
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Is there a laminar flow faucet attachment compatable with this model? Or an adaptor that would work?

Asked by: Taylor
Thank you for your question, Taylor! Although we do not offer a laminar flow aerator for this model, this spout has a thread size of M21.5x1-6G. The RP51505 adapter will convert this size to a male 55/64”-27 thread. You may then be able to find a compatible laminar flow aerator locally or online. https://www.deltafaucet.com/parts-product-detail?modelNumber=RP51505 Best regards, Edward
Answered by: DeltaFaucet234
Date published: 2018-10-18

The button on the sprayer sticks open, and I have to pull it back out to turn off the sprayer. How can I un-stick th button? Does it need a new spring inside? 

Asked by: TechiePhil
Hi, TechiePhil! Thank you for your question. Unfortunately, if the sprayer button is stuck, we do recommend to replace the sprayer assembly. The part number for this is RP53880AR. Here is a link to the part on our website: https://www.deltafaucet.com/parts-product-detail?modelNumber=RP53880AR To order, please contact our Delta Customer Service line at (800)345-3358. We are available Monday-Friday, 7am-7pm, CST and Saturday, 8am-5pm, CST. Best Regards, Rosanna
Answered by: DeltaFaucet11
Date published: 2018-04-02

When we use the sprayer, water continues to flow out of the faucet. Is this normal, or should the faucet stop flowing while the sprayer is in use?

Asked by: Bob
Hi Bob, Thank you for your question! The water should stop from the main spout while running the sprayer. If it continues the run the diverter needs to be replace. The diverter is apart of the sprayer assembly part number RP53880AR. Best regards, Brandis
Answered by: DeltaFaucet7
Date published: 2016-03-31

Can I add on a water filter, like Pur, by removing the aerator?

Asked by: Dee
Hi Dee, Thank you for your question. We offer the RP51505 aerator adapter to convert the internal thread pattern on the model 4380-AR-DST spout to a standard 55/64"-27 that will accept a water filter. Thanks, Dave
Answered by: DeltaFaucet2
Date published: 2015-06-02

Is the hose to the hand spray temperature sensitive, what material is it made from (e.g., flex nylon)

A lot of hand spray hoses are made from a temperature sensitive plastic material (hard to bend when cold). newer models have some sort of flex nylon or teflon that is not temperature sensitive to hot or cold and is always flexible
Asked by: M
Hi, M! Thank you for your question. The hose assembly is not temperature sensitive. The hose assembly should become more flexible through use and time. Best Regards, Rosanna
Answered by: Rosanna
Date published: 2017-01-18

how do you change aerator out

Asked by: RJ
Thank you for your question, RJ. The aerator can be unscrewed using the included wrench tool. Best regards, Jon
Answered by: DeltaFaucet3
Date published: 2016-12-21

do you have air cap for dishwasher with pilar stainless faucet?

Asked by: shar
Hello Shar, Thank you for your question. We only manufacture one style of air gap, which is model 72020-AR. This is available in the Arctic Stainless finish which will match your model. https://www.deltafaucet.com/kitchen/product/72020-AR Best regards, Tanya
Answered by: Delta Faucet
Date published: 2018-12-10

I have granite countertops with a setup of a 1” hole for the faucet spout(left hole), 1.5” for the handle/lever(middle), and 1.25” for sprayer(right)...is this compatible?” I removed the old one and cannot find a faucet to match setup of: 1”, 1.5”, 1.25”.

Asked by: Vcusob9882
Hi, Vcusob9882! Thank you for your question. The Delta 4380-AR-DST faucet has a maximum deck thickness of 2 1/2" (64 mm). Best Regards, Rosanna
Answered by: Delta Faucet
Date published: 2019-01-16
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