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Double RV Waste Valves - Sewer Wye - 3" Fixed Hub and 1-1/2" Rotating Spigot
(281 reviews)
Price: $47.87
In Stock
Valterra
Double RV Waste Valves - Sewer Wye - 3" Fixed Hub and 1-1/2" Rotating Spigot
Part Number: T38C
In Stock
$47.87
Retail:$68.64
You Save: 30%
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- All Info
- Reviews (281)
- Q & A (0)
- Photos
Valterra RV Waste Valve - T38C
- Double Waste Valve
- Manual
- 1-1/2 Inch Valve Body
- 3 Inch Valve Body
- Sewer Wye
- 3 Inch Hub
- Valterra
- 1-1/2 Inch Spigot
- Stationary Valve
RV sewer wye combines fixed black-water and rotating gray-water waste valves. 3" Hub slides over black-water line. 1-1/2" Spigot slides into gray-water line. Bayonet cap fits over the 3" lug fitting that connects to your sewer hose.
Features:
- RV sewer wye combines a 1-1/2" waste valve and a 3" waste valve
- Can be used as a replacement part or upgrade your existing setup
- Y-configuration merges the flow of waste from your black-water tank and gray-water tank
- 3" Hub slides over your RV's black-water line
- 1-1/2" Spigot slides into your gray-water line
- Rotating valve offers easy access at mounting location
- Position valve at desired angle during installation
- Bayonet-style cap covers lug fitting when not in use
- Integrated strap keeps cap connected to valves
- Durable black ABS plastic construction
- ABS solvent cement (sold separately) required for installation
- Gray and black handles for easy identification of valves
- 1-Year warranty
This RV sewer wye with valve is a part of your motor home's waste management system. The Y-configuration combines the flow of wastewater from your gray-water line and your black-water tank. Connect your sewer hose to the 3" lug fitting on the sewer wye and open the valves to drain your holding tanks.
T38C Valterra Motorhome Sewer Y w/ Double Valves - 3" Fixed Hub x 1-1/2" Rotating Spigot x 3" Bayonet Cap
Ratings & Reviews
4.8
281 reviews
by:
William
09/05/2026
Juat what i needed
by:
Robert
09/14/2025
This was an exact replacement. E-trailer worked well with the part manufacturer to help identify the part I needed. Etrailer is my go to for Travel trailer parts.
by:
John
09/09/2025
Was exactly the piece I needed and went in as well as could be hoped for such a complicated piece.
by:
Raleigh
12/01/2025
Great service
by:
John
01/22/2023
Quality product that helps combine my black a gray water drains into a single connection. Fast shipping. Thanks to everyone at etrailer!
by:
Terry - Adamsville, TN
07/17/2017
Exactly what I asked for with great service in a timely manner.
by:
Scott
06/10/2021
Product was a match for my existing valve. I reused part of the old assembly to reattach the new valve. This made it so there was no cutting or glueing.
by:
Dave
12/02/2018
It was easy to install and seems to be working with no mess.
by:
Bob
11/06/2024
It works.
by:
Gil c.
06/29/2017
A pleasure to deal with transaction over the phone
by:
Thomas
12/08/2025
by:
Rene
10/04/2021
by:
Kurt
09/15/2025
by:
Chris
03/27/2023
by:
Daniel
06/27/2021
by:
Daniel
06/27/2021
by:
Mike
07/13/2022
by:
Mike
09/15/2021
by:
PapaPanda
08/17/2026
Fit was just perfect. I didn’t have to cut any of the old pipe.
by:
Christie
08/06/2026
I ordered the wrong item but I was able to use some of the parts from the Y. I will save that for an emergency.
by:
Todd
07/24/2026
Was an exact replacement.
by:
James
05/31/2026
Great quality, great price, great communication, fast shipping! I installed it, it works great! Thank you!
by:
Ron
07/02/2026
Looks like a good Valterra product. Shipped on time. Haven't installed it yet but plan to in the next week.
by:
Dennis
09/15/2026
It wasn't the right angle of part I needed so honestly it didn't work out very well but thank you anyway
by:
jack
06/12/2019
The Parts I received matched up nearly perfect with the existing plumbing, that was ripper off when the inner duel blew out and took out all the piping along with the dump valves.
Jack
6/16/2020
It’s been working very good, actual better than the original.
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See what our Experts say about this Valterra RV Waste Valve
- Differences Between Valterra Double RV Waste Valve Models The difference between these models is the connection points for the black and gray water pipes. A hub will fit over a pipe while a spigot will fit inside of a pipe. You'll just need to choose the correct connection type for your current piping. The # TR38 is a 3" Hub and 1-1/2" Hub. The # TR38A is a 3" Spigot and 1-1/2" Hub. The # TR38B is a 3" Spigot and 1-1/2" Spigot. The # T38C is a 3" Hub and 1-1/2" Spigot.
view full answer... - Recommended Double Waste Valve Replacement For A 2000 Fleetwood Southwind Class A MotorhomeNo, the Bristol Double RV Waste Valves # 34466ND13AAR would not match what you have pictured, but you would be able to swap out what you have with the Double RV Waste Valves # T38C.
view full answer...
- Were There Standard Waste Valve Sizes on Older RVs?There is no industry standard for RVs when it comes to the pipes, except that the black water pipes are larger than the grey water pipes. We have a large selection of waste valves, and the pipe size as well as the type of fitting you need will determine which you should get. I've added a link to our page with each of our waste valves for you to take a look at.
view full answer... - Double Wye RV Fitting for Black Water and Two 1-1/2 Inch Gray Water LinesI'm not completely sure I understand what you are seeking. It sounds like you need a black water 3 inch and two 1-1/2 inch gray water. If that is the case you can use something like the Double RV Waste Valves - Sewer Wye - 3" Fixed Hub and 1-1/2" Rotating Spigot # T38C along with the # D50-2822 with a short 1-1/2 inch ABS pipe from a local hardware store to couple with the hub ends. You will need solvent # A05-0303 to chemically weld the pipes and fittings.
view full answer... - Sewer Wye with Valves for Gray and Black Water Pipes of Winnebago Mini Thanks for the picture of what you have based on that you are in need of the Double RV Waste Valves - Sewer Wye # T38C.
view full answer...
- Lenght of Pipe on Valterra Double RV Waste Valve # T38CI went out to the warehouse to take a measurement of the 3" diameter pipe on the Double RV Waste Valves # T38C and found that without the cap it measured 5" in length, as you can see in the accompanying photo I've added for you. I have also attached a link to a video review of this product for you to check out.
view full answer...
Do you have a question about this RV Waste Valve?
Info for this part was:
Installed by:
Jeff D
Expert Research:
Jameson C
Written by:
Amy B
Updated by:
Wilson B
Updated by:
Cody B
Video by:
Jonathan Y
Test Fit:
Kevin C
At etrailer we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.
Kate F.
8/20/2026
I will take perfect any day of the week PapaPanda =) I am happy we had the perfect replacement for you!