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
Documents & Specs
Product Support, Repair Parts & Technical Specifications
Installation Information
Overall Height (in.) :
2-1/4
Valve Type:
Euromotion DIAMOND(TM) Valve
REVIEWS
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
Rated 5 out of
5
by
Dale from
Works like new
Exact fit.
Date published: 2024-04-28
Q&A
How do you attach the screw that holds the handle on then. Is it meant to be self tapping
Hi Delta question,
Thanks for reaching out! The set screw on the handle is self-tapping. The hole in the stem of the cartridge does not come with threads, but once installed the cartridge may have threads cut into it by the set screw.
Best regards, Jon
Date published: 2024-03-28
Can the cartridge be adjusted to change the maximum temperature of the water coming out of the faucet?
Thank you for your question, Joey! This cartridge is not adjustable and does not actually control the temperature coming into the faucet but rather simply controls the amount of hot and cold water allowed to mix in the valve. You may need to check the setting on your water heater, however we do not recommend setting this above 120 degrees.
Best regards, Edward
Date published: 2024-10-27
How hard is it to replace a cartridge in a single handle Trinsic kitchen faucet? Do you need any special tools and if so do they come with the replacement cartridge?
Hi Mac486,
Thank you for your inquiry! Please see the below Maintenance/Installation document link for installing the Delta Euro Valve Cartridge RP73000. Please feel free to call, email, or message us on social if there is anything else you need.
https://media.deltafaucet.com/MandI/103705%20Rev%20A.pdf
Best regards,
Tanya
Phone: 1-800-345-3358 | Email: customerservice@deltafaucet.com | Facebook/Twitter: @deltafaucet
Date published: 2024-03-28
Does the Delta RP73000 fit the Delta Esso Touch20 single handled faucet Model# 9113T-AR-DST?
Hi, lanieb!
Thank you for your question. The Delta RP73000 Valve Cartridge Assembly does work with the Delta 9113T-AR-DST Faucet.
Best Regards, Rosanna
Date published: 2024-03-28
I received a replacement for this unit and it didnot have any threads in the post for the screw to be attached. Was this defective?
Hi Dan,
Thank you for your question. The hole in the stem is not intended to have threads.
Best regards,
Jon
Date published: 2024-03-28
Does the cartridge include the "infinity" shaped rubber seal that goes on the end of the cartridge?
Hello Agree,
Thanks for reaching out! We do not manufacture any o-rings or "infinity" seals for our faucet cartridge assembly. The set screw on the handle is self-tapping. The hole in the stem of the cartridge does not come with threads, but once installed the cartridge may have threads cut into it by the set screw.
Best regards,
Tanya
Date published: 2024-03-28
I have a leak in my Trinsic faucet, model no. 9159-AR-DST. On your website it says the replacement cartridge would be RP60114, but the tech person answering the phone said it was RP73000. Why is it different on your website?
Hello Mac486,
Thank you for your inquiry! For the Trinsic models produced before 08/01/2018 take an RP60114 cartridge, rather than an RP73000 cartridge. I have included a link to the RP60114 cartridge's web page, for you to refer to.
https://www.amazon.com/Brizo-Venuto-Euro-Motion-Valve-Assembly/dp/B004E280G6/ref=sr_1_1?crid=2SB8LTV7BHVK7&keywords=rp60114&qid=1572287957&s=hi&sprefix=rp60114%2Ctools%2C170&sr=1-1
Best regards,
Tanya
Date published: 2024-03-28
what size is the screw that holds the handle on?
Hi Scott,
Thank you for your question. The hole in the stem of the Delta Euro Valve Cartridge RP73000 cartridge does not come with threads, but once installed the cartridge may have threads cut into it by the set screw. The set screw uses a 1/8" Allen wrench for installation.
Best regards,
Tanya
Date published: 2024-03-28
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