Single Handle Water-Efficient Kitchen Faucet with Spray

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  • 4-hole installation
  • DIAMOND Seal Technology: a lifetime of reliable performance
  • Backed by Delta Faucet's Lifetime Limited Warranty
Finish: Chrome
List Price*: $189.10
Base Parts
List Price*: $189.10
Configurable Parts
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. *Industry standard is based on ASME A112.18.1 of 500,000 cycles.
  • 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
  • 4-hole 8" installation
  • Includes convenient side sprayer
  • ADA Compliant
  • Standard spout swivels 180degrees


Special Features

  • With Side Sprayer
  • ADA Compliant

Installation Information

4-hole 8" installation

  • Flow Rate: 1.5 gpm @ 60 psi, 5.7 L/min @ 414 kPa
  • Spout Height: 5-7/32"
  • Spout Length: 9-3/16"
  • Fittings Type: 3/8" compression fittings
  • Supply Lines: Included InnoFlex® Pex-C Supply Lines
  • Valve Type: DIAMOND Seal Valve
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I cannot remove the bonnet nut on my Delta classic 400-DST

I can remove the cap but not the bonnet nut. I put some penitrating oil on it but even with an 18" handle wrench, I cannot get it to turn. I'm afraid I'll twist the whole faucet out of the sink. Any advice for getting this nut off? Faucet drips and has to be shut off multiple times before it actually shuts off. Also, are these parts covered under warranty? Thanks, Randy Hart
Asked by: Randy
Hi, Randy! Thank you for your question. The bonnet can be removed by using an adjustable wrench. Here is a link to show you the removal on our how-to video. Best Regards, Rosanna
Answered by: Rosanna
Date published: 2017-01-17

is this faucet WaterSense listed?

Asked by: Dennis
Thank you for your question, Dennis! Although model 440-WE-DST is a water-efficient model, it is not WaterSense labeled. This model is designed to produce 1.50 gpm @ 60 psi. Best regards, Edward
Answered by: Delta Faucet
Date published: 2019-04-26

Is there anything that can be done to increase the water flow on this model? I did not realize this was a water efficient model. The water doesn't even dissolve the dishwasher detergent in the pans. I end up using the sprayer.

Asked by: Jo523
Thank you for your question, Manny! Model 440-WE-DST is designed to produce approximately 1.5 gpm @ 60 psi. If you are not getting this flow rate, you may need to flush the unit by removing the aerator and turning the water on to a full mixed position for more than a minute. The RP18508 aerator can also be ordered and used instead. This provides about 2.2gpm at 60psi. Best regards, Edward
Answered by: Delta Faucet
Date published: 2019-08-02
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