DELTA

Tub Spout Adapter - Tri Universal

Model#: RP100154
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DELTA
Tub Spout Adapter - Tri Universal
Model#: RP100154
List Price: $35.80
Online Price: $28.64
Free Ground Shipping All Orders $49+
Add to Favorites
Find local Delta® installers.
PRODUCT FEATURES
The Delta RP100154 Tub Spout Adapter is a genuine, high-quality solution for a secure tub spout installation. Designed to adapt to threaded pipe on Delta slip-on diverter tub spouts, this adapter provides a reliable connection and is best suited for copper plumbing. This durable brass adapter is specifically designed for use with Woodhurst models T14032, T14232, and T14432 tub/shower faucet trims, ensuring a perfect fit and dependable performance. With a lifetime limited warranty on the faucet and finish, you can have peace of mind knowing you've chosen a product built to last.
Special Information
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Documents & Specs
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Installation Information
Overall Height (in.) :
1-1/4
Valve Type:
NA
REVIEWS
Rated 1 out of 5 by from Not included! But necessary! The Tub Shower set looks beautiful. BUT...I am missing the part I need to finish my tub shower! Could not figure out if I had lost a part or what. Spent way too much time on this. Like everyone else... terrible instructions... everything is in three languages... That's great! But... please, give us three sets of instructions! instead of all together in one giant fold up piece of paper. On Wayfair the specs say this 144749 Nicoli Single-Function Tub Shower Faucet Set is for Water Inlet Pipe Thread NPT; Copper / CC; Pex. Perfect! BUT... it will not function with 1/2" NPT without an adaptor that is not included!!! Now I find I have to order it and wait another week to get the part. Inconvenient?! Definitely. So now I have to order this part for an additional cost + shipping and wait. For a company that is not that highly regarded by home improvement professionals I talked with, you should do everything you can to help the DIY community by giving clear and accurate instructions... (and by using a web form form that does not make you disable ad blockers to use.)
Date published: 2024-09-21
Rated 3 out of 5 by from Good, but BAD directions. This came with the tub spout I ordered. The bag has instructions printed on it but there are no paper instructions. If there were proper instructions I would realize you could EITHER, sweat it onto copper OR slip fit it over copper with the interior O ring and included set screw. I tried to sweat it on. However, with the interior O ring in place (instructions didn't say anything about it), it pushed all the flux out of the way. And also caught on fire when sweating-that's when I realized it was in there. So now I am going to have to sweat it off, clean it and the copper pipe, then re-sweat it into place. OR order another one and just use the slip fit option. There's no excuse for such poor instructions. Hindsight tells me I should have known better, but such is life.
Date published: 2023-10-18
Rated 1 out of 5 by from Terrible Quality Control I purchased a Delta Shower and Tub Kit over the weekend. I've spent the past two days trying to figure out why my spout kept leaking when I turned the shower on. After doing some research last night I realized that I had the wrong adapter. According to Delta this part is needed based on their instructions. However, they don't tell you that you have to order this separate. To add to the issue, this part isn't considered an expedited part and will take up to 10 days to get to me!!!
Date published: 2022-12-15
Rated 2 out of 5 by from Why is this part not included in tub shower kit Just purchased a porter tub shower kit Trying to figure out why my tub faucet wasn’t fitting had to come to faucet directions. This part I. Not in the kit. What a joke. So I’m stuck not being able to finish remodel till I get this part. QC issue or what I’m not sure
Date published: 2022-10-16
Rated 1 out of 5 by from Wrong part It’s the only adapter listed in the installation booklet but it the wrong part. It doesn’t fit in the tub spout.
Date published: 2021-12-04
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Q&A

I can’t get the adapter on the copper tubing. When I put it on the correct direction it won’t reach the inner o-ring but it I flip it in reverse it gets past the inner o-ring but stops just past it. Have you had issues with burrs inside the adapter?

Asked by: Chris
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 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
Answered by: Themar
Date published: 2025-02-20

I just received my BT14496-OB trim kit. Only hang up is the tub spout, instructions say a universal adapter is needed but this one doesn't look right. What adapter(s) are available to fit my spout??

Asked by: lar10
Hello lar10, Thank you for your question! I am happy to help you! Our Delta BT14496-OB comes with a tub spout that threads directly onto a 1/2" pipe near the nose. The installation sheet is a universal guide for more then one type of tub spout install. Please contact us back for any further questions. Best Regards, Nicole
Answered by: Delta7
Date published: 2024-03-28

Last question. Does copper pipe need to connect be sweated to a copper elbow per directions or can a brass drop ear elbow be used for stability? I would imagine the copper pipe to copper elbow would be easier to sweat but not as stable behind wall.

Asked by: Gret
Hi Gret, Thank you for your question about the Delta Faucet RP100154. If this adapter is installed with a Delta MultiChoice valve rough, the pipe to the tub spout must be a minimum of 1/2" copper or iron pipe. No push fittings and no "shark-bite" fittings. No cast or drop ear elbows. See here for more information: https://support.deltafaucet.com/s/article/Shower-Rise Please reach out with any additional questions! Best Regards, Bryan Digital Communications Specialist
Answered by: Customer Service
Date published: 2024-04-19

is this adapter compatible with the Geist spout (model # RP100495SP)?

Asked by: wynn
Hi wynn, Thank you for your question regarding our Delta Faucet RP100154. 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 adapter is compatible to a slip-on tub spout. 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
Answered by: Customer Service
Date published: 2024-09-25

I have a monitor T-14451-SS trim package w/48535SS spout. I do not want to solder the adapter to the1/2” copper tailpiece. Can I use the RP100154 or RP33794 adapters ?.  Thank you Greg 

Asked by: Greg09
Hi Greg09, Thank you for your question! A Delta Faucet model T14451-SS tub and shower trim will include an RP52148SS tub spout. https://www.deltafaucet.com/bathroom/product/RP52148SS.html RP100154 or RP33794 adapters will fit this tub spout for a copper pipe slip-on installation. Please contact us directly if you have any additional questions! Best Regards, Bryan Digital Communications Specialist
Answered by: Customer Service
Date published: 2024-03-28

I have one of these adapters that I can't remove. What tub spout with shower diverter can I install with this adapter in place?

Asked by: Dan7
Hi Dan7, Thank you for your question about the Delta Faucet RP100154. Diverter tub spouts that include this adapter include but not limited to: RP51303 RP52148 RP52153 RP77091 RP92932 RP93248 RP93273 RP93376 RP100452 RP101727 RP101845 RP101849 Please reach out with any additional questions! Best Regards, Bryan Digital Communications Specialist
Answered by: Customer Service
Date published: 2024-01-31

Directions specify cutting copper pipe flush to adapter after sweating the adapter to pipe. What is best method to cut it flush? I can’t cut it flush with my tube cutter after it has been soldered. Shouldn’t the copper pipe be cut before adapter is placed

Asked by: Gret
Hi Gret, Thank you for your question! Yes, the copper pipe should be cut before the adapter is set in place. Please reach out with further questions! Best Regards, Tim Digital Communications Specialist
Answered by: Customer Service
Date published: 2024-04-09

For a copper sweat installation of the tub spout universal adapter asst, rp100154, do I remove the inside o-ring and discard before soldering?

Asked by: Gret
Hello, Thank you for your question! Yes, you will remove and discard the small o-ring. Please reach out with further questions! Best Regards, Tim Digital Communications Specialist
Answered by: Customer Service
Date published: 2024-04-10

What Delta tub spouts will fit this adaptor?

Asked by: Kuch
Hello Kuch, Thank you for your question! We apologize for the inconveniences you are experiencing and will be happy to help you. The Delta Faucet Tub Spout Adapter - Tri Universal MODEL# RP100154 will work with tub spouts in the Delta Faucet Monitor 14 Series trim kits in the Delta Ashlyn Collection. Here is a list of Ashlyn Trim kits: T14464 T14464-RB T14464-SS T14464-LHD T14464-RBLHD T14464-SSLHD 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
Answered by: Kelley
Date published: 2024-03-28

Based on all the questions related to the set screw, maybe you could do a better job of securing the screw in the package. My trim set with the brass adapter did not have the set screw. I had to source one myself after figuring out the size 1/4"-28x1/4"

Asked by: Dirtheadtom
Hi dirtheadtom, Thank you for your question regarding our Delta Faucet RP100154. 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 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
Answered by: Customer Service
Date published: 2024-11-16

What size is the thread on the OD of this adapter?

Asked by: Kevin
Hello Kevin, Thank you for your question! I am happy to help you! Our Delta RP100154 has a thread size of 1/2". Please contact us back for any further questions. Best Regards, Nicole
Answered by: Delta7
Date published: 2024-03-28

Does this adapter work for iron pipe? 

Asked by: Alex
Hello Valued Customer, Thank you for contacting Delta Faucet Company! The RP100154 is our tri-universal tub spout adapter. This adapter fits 1/2" NPT, sweat 1/2" inch copper, and slips onto 1/2" inch copper. We appreciate your inquiry. Please reach out directly if you have further questions! Best Regards, Kyra Digital Communications Specialist
Answered by: Delta
Date published: 2025-03-27

Good Morning, Will this adapter work with RP101735 tub spout? If not, can you tell me what adapter should be used?

Asked by: dfirst
Hi dfirst, Thanks for your question regarding RP100154! No, this lavatory spout is not manufactured to work with RP100154. Please feel free to contact us with any questions or for further assistance. Best Regards, Emma Digital Communications Specialist
Answered by: Customer Service
Date published: 2023-03-03

What size set screw goes in brass tub spout adapter? RP100154 Set screw was lost or wasn't in it. Just can't find it

Asked by: Bob G
Hi Bob G, Thank you for your question about the Delta Faucet RP100154 Tub Spout Adapter. I am sorry this information was not readily available, and I am happy to help! This RP100154 adapter and the RP33794 adapter include a set screw with threads .250-28 UNF. Please contact us directly if you have any questions or need additional assistance. We appreciate your business and look forward to continuing to serve you! Best Regards, Bryan Digital Communications Specialist
Answered by: Customer Service
Date published: 2024-03-28

Directions are very confusing (directions on bag are not the same as the brochure), so two more questions: Does copper pipe for tub spout get cut off a distance from the wall equal to the length of adapter plus a quarter to half an inch? 

Asked by: Gret
Hi Gret, Thank you for your question about the Delta Faucet RP100154. The copper pipe is cut a maximum of 3 1/2" from the finished wall. The back of the adapter is between 1/4" and 1" from the finished wall surface. See installation instructions here: https://media.deltafaucet.com/MandI/100838%20Rev%20C.pdf Please reach out with any additional questions! Best Regards, Bryan Digital Communications Specialist
Answered by: Customer Service
Date published: 2024-04-19

Will this adapter work with the tub spout for a Delta Mandara Tub & Shower set?

Asked by: Mike
Hi Mike, Thank you for contacting Delta Faucet Company! I am sorry this information was not readily available, and I am happy to help you! Our Delta Faucet DELTA® Tub Spout Adapter - Tri Universal MODEL#: RP100154 is not compatible with the Mandara tub spout. The RP64862 tub spout uses an RP12307 adapter. Sweats onto 1/2" CWT or threads onto 1/2" IPS nipple. For sweating on the adapter, the copper tube should extend 2"-4" from the finished wall; the back of the adapter should be 1/4" to 1/2" from the finished wall. For threading on an adapter, the end of the thread fitting on the pipe should be 5/8" to 1-5/8" from the finished wall. Use thread tape or paste. Thank you for being a loyal Delta customer. Please feel free to call, email, or message us on social if you need anything else. Best Regards, Themar
Answered by: Customer Service
Date published: 2024-03-28

what size are the inside and outside O rings

Asked by: Chuck
Hi Chuck, thank you for your interest in the RP100154! The External O-ring Size is Nominal Size: is 15/16 x 1-1/8 x 3/32 with a Uniform Size Number 119 and the Internal O-ring Size is Nominal Size: is 5/8 x 7/8 x 1/8 with a Uniform Size Number 208 Please contact us directly if you have any questions or need additional assistance. Best Regards, Themar Digital Communications Specialist
Answered by: Customer Service
Date published: 2023-04-04

What is the difference between this adapter RP100154 and RP33794? I bought the shower/tub combo Model #: 144798-RB and need a spout adapter replacement. I have 1/2" copper pipe that will be slip-on only with set screw. Thanks

Asked by: Ali33
Hi Ali33, Thank you for your question about the Delta Faucet RP100154. This adapter is for thread, sweat, or slip-on. RP33794 is for sweat or slip-on. Either adapter can be used for 1/2" copper pipe slip-on. Please reach out with any additional questions! Best Regards, Bryan
Answered by: Delta
Date published: 2025-12-18

What size is the set screw for the RP100154 adapter. My customer purchased valve and trim but set screw was not in fitting when I went to install tub spout. The package was not cut or damaged. This is unusual as the set screw is usually screwed in.

Asked by: Alan
Hi dirtheadtom, Thank you for your question. The RP100154 includes a set screw with threads .250-28 UNF. 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
Answered by: Themar
Date published: 2026-01-30

Will this adapter work for the pivotal tub spout (RP90159BL)? If not, do you have one that will?

Asked by: Jeff
Hello Customer! Thank you for your question and we are happy to help. The Delta RP100154 is our tri-universal tub spout adapter. This adapter fits 1/2" NPT, sweat 1/2" inch copper, and slips onto 1/2" inch copper. With any further questions or concerns, please do not hesitate to reach out to us again. Best Regards, Carrie
Answered by: Carrie
Date published: 2025-07-16

What metal is the set screw made out of? Steel? Or brass? Or stainless steel?

Asked by: CFetch
Hi CFetch, Thank you for your question about the Delta Faucet RP100154 Tub Spout Adapter - Tri Universal. We will be happy to assist you as quickly as possible. The set screw would be stainless steel. Please contact us directly if you have any questions or need additional assistance. Thank you for being a loyal Delta Faucet customer. We appreciate your business and look forward to continuing to serve you! Best Regards, Bryan Digital Communications Specialist
Answered by: Customer Service
Date published: 2024-03-28

What is the length, size and thread count for the set screw?

Asked by: Dirtheadtom
Hi dirtheadtom, Thank you for your question regarding our Delta Faucet RP100154. The RP100154 includes a set screw with threads .250-28 UNF. 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
Answered by: Customer Service
Date published: 2024-11-16

Hello i have a 1/2 inch pipe with the adapter saudered on i need a 7" Chrome stainless faucet that attaches to the adapter where the plastic piece fits over 

Asked by: eric rubin
Hi eric! Thank you for your question and we are happy to help. The tub spouts in the Monitor 14 Series trim kits in the Delta Ashlyn Collection will have the RP100154 adapter assembly. Here is a list of Ashlyn Trim kits: T14464 T14464-RB T14464-SS T14464-LHD T14464-RBLHD T14464-SSLHD Best Regards, Carrie
Answered by: Customer Service
Date published: 2024-04-04

Is the o ring for this part sold separately?

Asked by: Deb57
Hi Valued Customer, Thank you for your question. Unfortunately, we have the dimensions. The External O-ring Size is Nominal Size: is 15/16 x 1-1/8 x 3/32 with a Uniform Size Number 119 and the Internal O-ring Size is Nominal Size: is 5/8 x 7/8 x 1/8 with a Uniform Size Number 208. 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
Answered by: Themar
Date published: 2026-01-10

Does this adapter come with a set screw for tightening on copper water line. The image doesn't show. The item in the instruction does show a set screw Thanks, Keith

Asked by: Keith
Hi Keith, Thank you for your question about the Delta Faucet RP100154. A set screw is included for slip-on installations. Please reach out with any additional questions! Best Regards, Bryan Digital Communications Specialist
Answered by: Delta
Date published: 2025-04-21

Looking for tub spouts that can slip on to the R10000-PFT-MFWS 0.5 PEX Cold Expansion with Stops Tub & Shower Rough-In valve. Or do you have any adapters that can fit a threaded tub spout to this 90-degree tub drop. I'm trying to avoid soldering.

Asked by: Mike
Hi Mike, Thanks for your question regarding RP100154! The following models are compatible: RP92932 and RP52148. Please feel free to contact us with any questions or for further assistance. RP92932 - https://www.deltafaucet.com/bathroom/product/RP92932.html RP52148 - https://www.deltafaucet.com/bathroom/product/RP52148.html Best Regards, Emma Digital Communications Specialist
Answered by: Customer Service
Date published: 2024-03-28

We are working on a house that the deck mount tub spout is missing. I assume it was delta because the rest of the controls are. I need to find one in brushed nickel

Asked by: KRBDVLP
Hello KRBDVLP, Thank you for your question about the Delta Faucet RP100154 Tub Spout Adapter - Tri Universal. I apologize for any difficulty finding this information. I know that can be frustrating. We are happy to help! This adapter would not be used on a deck mount tub filler. Our stainless finish is referred to as brushed nickel by some retailers. See our selection of Roman tub fillers in the stainless finish here: https://www.deltafaucet.com/bathroom/bathing/tub-fillers?cgid2=Delta_Bathroom_Bathing_Tub-Fillers_Roman-Tub&prefn1=finish&prefv1=Stainless&prefn2=narrowResults&prefv2=hideDiscontinued&prefn3=recertified&prefv3=false Please reach out at customerservice@deltafaucet.com or 1-800-345-DELTA if you have any questions or need additional assistance. Thank you for being a loyal Delta Faucet customer. Best regards, Bryan
Answered by: Customer Service
Date published: 2024-03-28

What size is the set screw?

Asked by: Jake
Hi Jake, Thanks so much for contacting Delta Faucet Company! The Tub Spout Adapter MODEL#: RP100154 includes a set screw with threads .250-28 UNF. Please reach out with further questions! Best Regards, Kelley Digital Communications Specialist
Answered by: Customer Service
Date published: 2024-11-13

Is this all brass? 100% brass and not a mixture of metals?

Asked by: Valerie
Hi Valerie, Thank you for contacting Delta Faucet Company! Please accept our sincere apology for the inconvenience you are experiencing. Here is what we can do to resolve your issue for you. Our Delta Faucet Tub Spout Adapter - Tri Universal MODEL#: RP100154 is a brass adapter with a stainless steel screw and orings. Thank you for being a loyal Delta Faucet customer. We appreciate your business and look forward to continuing to serve you. Please contact us back with any further questions. Best Regards, Nicole
Answered by: Customer Service
Date published: 2024-03-28

Is this product compatible for a 1/2” pipe into the Delta Chamberlain In2ition Single-Handle 4-Spray Tub and Shower Faucet in Venetian Bronze?

Asked by: Marc
Hello Marc, Thank you for your question! I am happy to help you! Our Delta RP100154 accepts a 1/2" connection, The instructions would also advise on installation as well. Please contact us back for any further questions. Best Regards, Nicole
Answered by: Delta7
Date published: 2024-03-28
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