DIAMOND™ Valve - Euro-Motion - Short Stem
Model#:
RP73000
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PRODUCT FEATURES
The Delta® single-handle valve cartridge is ideal for single-handle kitchen and lavatory faucets. 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 Delta products are backed by our Lifetime Limited Warranty.
- 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
- Innovative diamond sealing surfaces
- For use with single-handle kitchen and lavatory faucets (not included)
- Genuine Delta Part
- Backed by Delta Faucet's Lifetime Limited Warranty
Special Information
California Prop 65 WARNING
CALIFORNIA PROP 65 WARNING
<b>WARNING: </b>Cancer risk from exposure to Nickel (Metallic). See www.P65Warnings.ca.gov.
For more information go to http://www.P65Warnings.ca.gov
Special Information
California Prop 65 WARNING
CALIFORNIA PROP 65 WARNING
<b>WARNING: </b>Cancer risk from exposure to Nickel (Metallic). See www.P65Warnings.ca.gov.
For more information go to http://www.P65Warnings.ca.gov
Documents & Specs
Product Support, Repair Parts & Technical Specifications
Installation Information
Overall Height (in.) :
2-1/4
Valve Type:
Euromotion DIAMOND(TM) Valve
REVIEWS
Rated 5 out of
5
by
Anonymous from
Slow hot water, how do I return it?
Did not need it, it was the main water valve that cut off the hot wster
Date published: 2026-04-18
Rated 2 out of
5
by
mained from
It works, but an unhappy journey
I did a lot of work ahead of time looking up old documentation validating the exact right part — RP73000! Ordered the part and was sent me the wrong part. Called back, Delta said they’d send again overnight express. Took 6 days to arrive. This one was an RP7300, but the package had already been opened and the cartridge was loose in the shipping bag. I installed it anyway and had the exact same problem other reviewers had that the stem wasn’t threaded. Removed the cartridge from the faucet and by force-turning the screw into the stem with the allen wrench, it created a thread in the soft metal of the stem. Reinstalled and it works. Side note - the Brizo side of Delta is fabulous.
Date published: 2025-12-22
Rated 3 out of
5
by
stklein56 from
No Threads in Stem for Set Screw
I purchased this part through Amazon. It is a Delta Genuine Part. There are no threads in the stem so the set screw cannot be installed. I will return the unit to Amazon and request a replacement.
Date published: 2025-12-19
Rated 1 out of
5
by
2021 homeowner from
Always leak. Terrible quality
Had to replace 2 out of 3 faucets using this part RP73000 due to leaking within 4 years of moderate use from my girlfriend and I.
Date published: 2025-09-29
Rated 1 out of
5
by
Calcium Stained Quartz from
Terrible quality DO NOT BUY
I’m incredibly disappointed with the quality and design of this product. It’s over-engineered in all the worst ways. The small handles may look sleek, but the internal design is a nightmare. I expected better from Delta. This level of complexity and complete lack of repairability is unacceptable.
It feels like Delta intentionally created an overly complicated valve system just to ensure constant replacements. These valves fail every 2–3 years, and at $60 each time, it's a complete rip-off. For a brand with Delta’s reputation, this is disgraceful. I’m upset and expect Delta to stand behind their product and offer to repair or replace it free of charge. Otherwise, I’ll be replacing the entire faucet—with a different brand.
Date published: 2025-05-09
Rated 2 out of
5
by
Kitchen Faucet User from
Original broken
metal post connecting valve to handle broken clean off
faucet is 6 years old
virtual assist is useless and can't find an email address for customer service.
sounds like this should be covered by a warrenty
Date published: 2024-12-29
Rated 2 out of
5
by
mrkuppy from
Quality part though lacking QC
The cartridge seems like a quality part but the manufacturing quality control is lacking. Upon installing the new cartridge I noticed the hole on metal stem was missing threads, all Part seems to be of quality components except that the metal stem was missing threads. This is something that should have been caught during the manufacturing process. Another trip back to the big box store for a good replacement. Fit and operation were fine with the new cartridge. Would have been 4 stars without this added inconvenience.
Date published: 2024-07-19
Rated 4 out of
5
by
Randy from
Easy to install with help
The stem on my valve broke in half after 6 years of use. Delta sent me a replacement free of charge. I really appreciated the quick response and overnight shipping of the part. However, some instructions are needed to replace the unit. There is a hole in the stem where the handle is attached with a screw. The hole is not threaded and I thought it was the wrong part, but after sending an email to customer support, I learned the screw taps the threads when you screw it in the hole. This can't be done with the valve installed in the faucet as it requires too much force to start the threads. Once I understood this the valve was replaced and worked as designed.
I am very happy with Delta's warranty and their rapid response sending replacement parts.
Date published: 2024-05-23
Q&A
Does faucet set screw come with cartridge?
Hi Valued Customer,
Thank you for your question.
Yes, the screw is included.
Please feel free to contact us directly for technical information at 800-345-3358. We are available Monday through Friday from 8 a.m. to 8 p.m. and Saturdays from 9 a.m. to 6 p.m. Eastern Standard Time.
Thank you for being a loyal Delta Faucet customer.
Best Regards,
Themar
Digital Communications Specialist
(800) 345-3358
customerservice@deltafaucet.com
Date published: 2025-10-04
Saw online that the replacement cartridge for 19933-SD-DST faucet was guaranteed by Delta. I this true.
Hello Valued Customer,
Thanks so much for contacting Delta Faucet Company!
Our products do have a Limited Lifetime Warranty that covers, all parts (other than electronic parts and batteries) and finishes of Delta® faucets purchased from authorized Delta sellers to the original consumer purchaser to be free from defects in material and workmanship for as long as the original consumer purchaser owns the home in which the faucet was first installed. I have included a link below for the warranty information.
https://www.deltafaucet.com/service-parts/warranty
Please reach out with further questions!
Best Regards,
Kelley
Digital Communications Specialist
Date published: 2024-09-16
What is delivery time
Hello,
Thank you for your question!
As a made to order company standard delivery time is 6 to 8 business days.
Please reach out with further questions!
Best Regards,
Tim
Digital Communications Specialist
Date published: 2024-01-31
How to fix the leak in DELTA DOMINIC® 19940TZ-SPSD-DST what is the suitable valve for this Model What is the cost?
Hi Rajamohan,
Thanks for your question regarding RP73000! The 19940TZ-SPSD-DST takes the RP73000 cartridge to repair a leak, and I have included a link below to our Limited Warranty details.
https://www.deltafaucet.com/warranty
Please feel free to contact us with any questions or for further assistance.
Best Regards,
Emma
Digital Communications Specialist
Date published: 2023-05-05
Compatible delta 106557 kitchen
Hi Elucelio,
Thank you for your question about the Delta Faucet RP73000.
Unfortunately, 106557 is an installation manual number that is included with many different faucet models. The model number is located on a supply line tag. We also have a tool to help identify your model here:
https://www.deltafaucet.com/service-parts/find-parts-and-identify-product
The product page for your model will have a Parts & Accessories Diagram that shows replacement parts. Please contact us directly for additional assistance with finding your model number or if you have any additional questions!
Best Regards,
Bryan
Digital Communications Specialist
Date published: 2024-03-28
What is the correct aerator and wrench to purchase to replace an aerator that is dripping for the Delta single handle High-arc single hole bathroom faucet - SKU1007799034 which I think is model 559HA-RB-DST? Thanks.
Hi Lee S,
Thank you for your question about the Delta Faucet model 559HA-RB-DST.
For models produced after 12/04/2023, a replacement aerator and wrench are RP101953-1.2.
For models produced before 12/04/2023, a replacement aerator and wrench are RP71260-1.2.
See the parts diagram for more information:
https://media.deltafaucet.com/PartsDiagram/DPD-L-559HA-DST%20Rev%20F.pdf
Please reach out with any additional questions!
Best Regards,
Bryan
Digital Communications Specialist
Date published: 2024-04-06
Is the RP73000cartridge adjustable to allow water to get hotter?
Hello!
No, there is not a temperature adjustment feature on this cartridge.
Please reach out with further questions!
Best Regards,
Tim
Digital Communications Specialist
Date published: 2026-04-07
Is there a compatible cartridge to the rp73000 that has a higher flow rate for tub
Hello Valued Customer,
Thank you for contacting Delta Faucet Company!
No, our models that use RP73000 does not have another cartridge option to get a higher flow. We apologize for any inconvenience this may cause!
We appreciate your inquiry. Please reach out directly if you have further questions!
Best Regards,
Kyra
Digital Communications Specialist
Date published: 2025-03-28
How do I get this replacement part as part of the warranty without paying for it?
Hello Valued Customer,
Thank you for contacting Delta Faucet Company!
We apologize for the issues you are experiencing and we are happy to help! We have reached out to you directly to further assist you with this matter.
We appreciate your inquiry. Please reach out directly if you have further questions!
Best Regards,
Kyra
Digital Communications Specialist
Date published: 2025-01-06
Is there a temperature adjustment on the rp73000 cartridge? I don’t see one. If not how do you adjust the temperature?
Hi Bob 22,
Thanks so much for contacting Delta Faucet Company about RP73000! No, the cartridge does not have an adjustable temperature setting. The cartridge open and closes and produces the temperature it is provided, we would recommend flushing the faucet and changing the hot water heater temperature to 120 or lower.
Please contact us directly if you have any questions or need additional assistance.
Best Regards,
Nicole
Digital Communications Specialist
Date published: 2023-06-21
HI, does the RP73000 fit the Cassidy collection model 9197-ar-dst that was made before august 2018?
Hi tiffanydm,
Thank you for your question. The RP73000 does not fit the Cassidy model 9197-AR-DST that was made before 2018. The correct cartridge replacement number is RP60114.
Best regards, Simone
Date published: 2024-03-28
Is there a way to change the restrictor plate in this so i can get more hot water?
Hi Dirk,
Thanks for your question regarding RP73000! No, the only cartridge with that safety feature is RP50587.
Please feel free to contact us with any questions or for further assistance.
Best Regards,
Emma
Digital Communications Specialist
Date published: 2024-03-28
We have a Mateo single-handle kitchen sink faucet 9183-AR-DST. The faucet has developed a nozzle drip leak. I assume the cartridge is faulty and needs to be replaced. Is this cartridge covered by the lifetime warranty? What cartridge do we need?
Hello Customer!
Thank you for your question and we are happy to help. The Delta 9183-AR-DST uses the RP73000. With any further questions or concerns, please do not hesitate to reach out to us again.
Best Regards,
Carrie
Date published: 2025-03-04
Is this cartridge the right replacement product for Delta faucet 106557
Hi Mike,
Thank you for your question, we are happy to help!
The faucet model number can be found on a tag on the supply line. See the faucet model's product webpage for the parts diagram showing the replacement cartridge.
See our replacement cartridges here:
https://www.deltafaucet.com/service-parts/find-parts-and-identify-product/common-parts/kitchen/leaks/single-handle-cartridges
Please reach out for further assistance or with any additional questions!
Best Regards,
Bryan
Digital Communications Specialist
Date published: 2024-06-04
Why does the handles keep coming off even though they have been tightened.
Hi tgib,
Thank you for your question about the Delta Faucet RP73000.
To securely install a handle to this cartridge:
1. Thread self-tapping screw into bottom of stem leaving a 1/8" gap.
2. Push handle onto stem.
3. Finish tightening screw with 1/8" hex key to secure handle.
See further instructions here:
https://media.deltafaucet.com/MandI/103705%20Rev%20A.pdf
Please contact us directly if you have any additional questions or for additional assistance!
Best Regards,
Bryan
Digital Communications Specialist
Date published: 2024-03-28
Please advise: I installed a (new) Trinsic Pro 9659-ar-dst faucet, manufactured in 2022, which uses this cartridge. No leaks, but the handle movement is uneven and there's friction. What do I do? Can I lubricate the cartridge? Thanks.
Hi zinran,
Thanks for your question regarding RP73000! I have included a link below to the installation instructions for RP73000.
https://media.deltafaucet.com/MandI/103705%20Rev%20A.pdf
Please feel free to contact us with any questions or for further assistance.
Best Regards,
Emma
Digital Communications Specialist
Date published: 2023-09-20
Is there a video to show how to replace cartridge # RP73000?
Hello One Iron,
Thank you for contacting Delta Faucet Company. I apologize for the inconveniences you are experiencing and will be happy to help you.
Looking into this, I have found instructions to replace your RP73000. Please refer to the information below. I apologize again for any inconvenience this may cause.
Please shut off the water supplies, gather your 1/8" allen wrench, wrench and strap wrench before we begin.
1. Please remove your handle with the 1/8" allen wrench. There may be a button you can remove with your finger nails first.
2. Once you remove the handle, you should see the cap, or sleeve assembly. Remove this with your strap wrench if you cannot remove it with your hand.
3. After the cap or sleeve has been removed, you should see a brass bonnet, please use your wrench to remove this part.
4. Your cartridge is now free to be removed. Please ensure there is no debris on the puck piece inside of the valve. If there is, please grab q-tips or paper towels to clean it out.
5. You are now able to install your new cartridge.
Please contact us back if you need further assistance.
Best Regards,
Nicole
Date published: 2024-03-28
I have a Delta kitchen faucet, Model:9193T-AR-DST. Does this cartridge fit my faucet. It not, do you have a cartridge of this model>
Hello Jim Basiley,
Thank you for reaching out to Delta Faucet Company!
The correct cartridge for our 9193T-AR-DST is RP91902.
We appreciate your inquiry. Please reach out directly if you have further questions!
Best Regards,
Kyra
Digital Engagement Specialist
Date published: 2024-01-31
I was told by representative to flush out system before replacing Delta RP73000. Is that correct?
Hi Valued Customer,
Thank you for your question regarding our Delta Faucet RP73000.
Yes, flushing the faucet will clear any debris that may have gotten into the lines while the faucet was off.
Please feel free to contact us directly for technical information at 800-345-3358. We are available Monday through Friday from 8 a.m. to 8 p.m. and Saturdays from 9 a.m. to 6 p.m. Eastern Standard Time.
Thank you for being a loyal Delta Faucet customer.
Best Regards,
Themar
Digital Communications Specialist
(800) 345-3358
customerservice@deltafaucet.com
Date published: 2024-01-31
Hello, I have a 19835Z-SPSD-DST and the screw holding the valve and handle is stripped and I'm unable to tighten it which leads to my handle falling off every now and then. Is it possible to order just the screw for the valve?
Hi Valued Customer,
Thank you for your question, please accept our sincere apology for the inconvenience you are experiencing. We will be happy to assist you in resolving this issue as quickly as possible.
Please feel free to contact us directly for technical or warranty information at 800-345-3358. We are available Monday through Friday from 8 a.m. to 8 p.m. and Saturdays from 9 a.m. to 6 p.m. Eastern Standard Time.
Thank you for being a loyal Delta Faucet customer.
Best Regards,
Themar
Digital Communications Specialist
Date published: 2026-01-23
The cold water drips from the spout; the hot water works fine. Is this a problem with the cartridge ?
What specific cartridge fits the Delta single handle High-arc single hole bathroom faucet - SKU1007799034 which I think is model 559HA-RB-DST? I need to order a couple cartridges for future replacements once drips start.
Hi Lee S,
Thank you for your question about the Delta Faucet model 559HA-RB-DST.
This faucet includes cartridge RP73000.
Please reach out with any additional questions!
Best Regards,
Bryan
Digital Communications Specialist
Date published: 2024-04-05
do they make RP73000 cartridge in a long stem
Hi john d,
Thank you for your question!
Unfortunately no, we do not offer an alternate version of this cartridge.
Please reach out with further questions!
Best Regards,
Tim
Digital Communications Specialist
Date published: 2024-01-31
I want to rotate my Brizo Solna kitchen faucet so that the handle is on the left. But the cartridge stem is keyed/non reversible and so the handle would point away from the user. Is there another model of this cartridge available that would work?
Thank you for your question, Teee! No, a different cartridge can not be used with the Brizo Solna kitchen faucet.
Best Regards, Benjamin
Date published: 2024-03-28
Good evening, i will like to know where i can purchase the cart for model#559lf-mpu other than your website. I recently purchase about 6+ of the faucet from lowes.
Hi Daniel,
Thank you for your question about the Delta Faucet RP73000.
This cartridge is used by the faucet model 559LF-MPU, if the faucet was made before 06/26/2022. Currently, the faucet uses cartridge RP101762.
You can purchase Delta Faucet products from many local dealers and websites. If a dealer does not carry a specific item in stock, they should still be able to place an order for you. I recommend our store locator.
https://www.deltafaucet.com/where-to-buy
Please reach out with any additional questions!
Best Regards,
Bryan
Date published: 2025-12-30
Does the RP73000 cartridge fit the Delta Mateo 9183-DSTA? Is it available at Home Depot or Lowes?
Hello George74,
Thank you for your question! We apologize for the inconveniences you are experiencing and will be happy to help you.
The Delta MATEO Single Handle Pull-Down Kitchen Faucet With ShieldSpray Technology MODEL# 9183-DST does use the RP73000 cartridge assembly. You can purchase parts online, locally, or over the phone. Please see our Where to Buy page for help finding dealers in your area or online.
https://www.deltafaucet.com/where-to-buy
To order parts over the phone, please call us at 1-800-345-3358, Monday through Friday from 8 am to 8 pm and Saturday from 9 am to 6 pm Eastern Standard Time. We accept Visa or MasterCard
Thank you for being a loyal Delta customer. We look forward to continuing to serve you. Please feel free to contact us back for further assistance.
Best Regards,
Kelley
Date published: 2024-03-28
My sink Faucet Cartridge has this number printed. 77338M6. What is the compatible model
Hi Surangi,
Thank you for your question! Unfortunately, the number on the cartridge is not the Delta part number. The model number may be found on a sink faucet's supply line tag. We would be happy to help identify the faucet model with a couple of pictures.
Please reach out with any additional questions!
Best Regards,
Bryan
Digital Communications Specialist
Date published: 2026-04-21
Which delta handles does it compatible with?
Hi Valued Customer,
Thank you for your question, please accept our sincere apology for the inconvenience you are experiencing. We will be happy to assist you in resolving this issue as quickly as possible.
The Trinsic faucet.
Please feel free to contact us directly for technical or warranty information at 800-345-3358. We are available Monday through Friday from 8 a.m. to 8 p.m. and Saturdays from 9 a.m. to 6 p.m. Eastern Standard Time.
Thank you for being a loyal Delta Faucet customer.
Best Regards,
Themar
Digital Communications Specialist
Date published: 2026-01-22
How long should a cartridge last before needing to be replaced? Also, is it covered under the lifetime warranty?
Hi Xsmokin, thank you for your interest in the RP73000!
The cartridge is expected to last for a very long time. Quality is very important to us, and our products undergo rigorous testing to ensure high-quality performance. We offer a Lifetime Limited Warranty on all parts and finish.
Please contact us directly if you have any questions or need additional assistance.
Best Regards,
Themar
Digital Communications Specialist
Date published: 2024-03-28
Delta Online Pricing
This online price is exclusive to DeltaFaucet.com. The list price may be shown on products offered outside of the Outlet section on DeltaFaucet.com. Strikethrough pricing may be used to show discounts.