Delta®
Extension Kit - Centerset
Model#:
RP76691
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PRODUCT FEATURES
- Compatible with centersets from the following collections: Cassidy, Leland, Classic, Windemere, and Foundations
- Extends mounting depth by 1 1/4" to allow installation through thicker, solid surface countertops
- Kit includes: 2 lead-free brass shank extensions, 2 rubber seals, and 2 plastic spacers
Special Information
California Prop 65 WARNING
CALIFORNIA PROP 65 WARNING
<b>WARNING: </b>Risk of cancer and reproductive harm from exposure to Lead. 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>Risk of cancer and reproductive harm from exposure to Lead. 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.) :
2-3/8
Valve Type:
NA
REVIEWS
Q&A
Will this extension kit work with bathroom faucet 3551LF-SS? If not, what extension kit will work for a 5cm thick countertop?
Hello,
Thank you for your question!
Yes, we offer the RP10612 extension kit for this model which will extend the deck thickness by 1".
Please reach out with further questions!
Best Regards,
Tim
Digital Communications Specialist
Date published: 2024-12-06
I have a Delta Porter faucet set #35984LF-OB-ECO. Will this item be compatible with the threads?
Thank you for your question. Unfortunately, this kit will not work with the model 35984LF. The RP10612 kit will work with the hot and cold valve, but not the spout.
Best regards, Jon
Date published: 2024-03-28
Hi, I’d like to know if this is compatible with part T3548LF-SSWL.
Hello!
No, this is for a non-wall mount lavatory faucet. Unfortunately we do not offer an extension kit for the Bowery wall mount faucet. We apologize for any inconvenience this may have caused.
Please reach out with further questions!
Best Regards,
Tim
Digital Communications Specialist
Date published: 2025-10-21
will shank extender work with faucet?
am installing a Delta kitchen faucet # 21966LF-SS (discontinued product, but bought new via Amazon) in new granite countertop. Faucet tech specs say max counter thickness can be 1 and 3/16 inches. Granite is 1 and 4/16th inches. Will the Delta RP 76691 shank extension kit work? That is, are threads compatible for proper connection between faucet shank and the extension kit, using Delta’s recommended hole width for faucets? Or is there another, better solution for a shank too short for countertop thickness? Also, assuming no extenders will be needed for the sidesprayer installation in the 1 and 1/4" thick counter, correct?
Thanks!!!
Hi Jerry,
Thank you for your question. The RP76691 extension kit will work with the 21966LF-SS. You will not need an extension for the sprayer support or hose connection.
Thanks,
Jon
Date published: 2024-03-28
Re: RP76691, how tall is the ring which goes against the underside of the countertop? Thank you.
Hi Stevo,
Thank you for your question! We apologize that this information was not readily available and will be happy to help you.
The Delta Faucet Extension Kit - Centerset MODEL#: RP76691 has ½” – 14 NPSM threaded male inlet shanks. Please refer to the maintenance and installation guide for more details, I have attached the link below.
https://media.deltafaucet.com/MandI/X00077259_A.pdf
Thank you for being a loyal Delta Faucet 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
Will this extension kit work with model 35899LF-SP, a 2-handle widespread bathroom faucet within the Pierce line. If not, is there another extension? The marble countertop that we are hoping to install this fixture is 2.4 inches thick. Thank you
Hi Todd,
Thank you for your question about the Delta Faucet RP76691.
Unfortunately, we don't carry an extension kit for the faucet model 35899LF-SP.
For a thickness of 2.4", the faucet model 35864LF-SP should fit and the thickness can be extended up to 1" with RP10612.
Please contact us directly if you have any additional questions!
Best Regards,
Bryan
Digital Communications Specialist
Date published: 2024-03-28
Will this extension kit work with The Portwood Centerset faucet Model #25770LF?
Hello Kegrey,
Thank you for your question! I am happy to assist you!
The Delta RP76691 extension kit is the correct kit for the 25770LF.
Please contact us back with any further questions.
Best Regards,
Skyler
Date published: 2024-03-28
Would this work for extending for the Delta 559HA-DST faucet?
Hi Nancy,
Thank you for your question about the Delta Faucet model RP76691.
This two-handle extension kit would not work with the faucet model 559HA-DST. Unfortunately, we don't carry an extension kit for this model. It can fit a deck thickness of up to 3".
Please contact us directly if you have any additional questions!
Best Regards,
Bryan
Digital Communications Specialist
Date published: 2024-03-28
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