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 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
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