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  1. RV Waste Valves
  2. Valterra
  3. Single Waste Valve - Manual
  4. 1-1/2 Inch Valve Body
  5. Straight Valve
  6. Stationary Valve
Valterra Waste Valve for RV Gray Water Tank - 1-1/2" Diameter - Hub to Hub

Valterra Waste Valve for RV Gray Water Tank - 1-1/2" Diameter - Hub to Hub

Item # T1001B
Our Price: $22.41
You Save: 18%
RV Waste Valves
Shipping Weight: 0.55 lbs
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Replaces the valve for your RV's gray-water tank. 1-1/2" Diameter passage allows wastewater to travel freely when valve is open. The 1-1/2" Hubs slide onto 2 separate sewer pipes. Great Prices for the best rv waste valves from Valterra. Valterra Waste Valve for RV Gray Water Tank - 1-1/2" Diameter - Hub to Hub part number T1001B can be ordered online at or call 1-800-940-8924 for expert service.
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  • Reviews (73)
  • Q & A (0)
  • Videos (1)
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Valterra RV Waste Valves - T1001B

  • Single Waste Valve - Manual
  • 1-1/2 Inch Valve Body
  • Straight Valve
  • Valterra
  • Stationary Valve

Replaces the valve for your RV's gray-water tank. 1-1/2" Diameter passage allows wastewater to travel freely when valve is open. The 1-1/2" Hubs slide onto 2 separate sewer pipes.


  • Replacement valve for your RV's gray-water tank
  • 1-1/2" Diameter passage allows wastewater to travel freely when valve is open
  • 1-1/2" Hubs slide onto 2 separate sewer pipes
  • ABS solvent cement (sold separately) required for installation


  • Length with valve open: 8-3/4"
  • Length with valve closed: 6-5/8"
  • 1-Year warranty

T1001B Valterra Motorhome Grey Water Holding Tank Waste Valve - 1-1/2" - Hub x Hub

Video of Valterra Waste Valve for RV Gray Water Tank - 1-1/2" Diameter - Hub to Hub

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.

Video Transcript for Valterra RV Sewer - Waste Valves - T1001B Review

Today, we're going to be taking a look at the Valterra RV waste valve. This unit simply adds or replaces a waste valve gate in your RV's waste system. It's made from a strong and durable black plastic construction. It's going to feature the inch and a half spigot or hub located on each side, same connection point on each side. This would connect between two plumbing pips. A few measurements to go over with you real quick. We just want to go over the internal and external diameter here at the connection.

Internal, that's inside edge to inside edge, it's going to measure very close. It's about 1 7/8 of an inch. Outside edge to outside edge is going to be about 2 3/8 of an inch. That's going to be the same on each side. It's going to feature the easily accessible T handle. It's going to make opening and closing the gate very quick and easy.

The color of the handle is grey. The unit's already pre-assembled. It has all the appropriate seals and hardware that's needed for leak proof performance. To give you an idea of the overall length with the handle in the closed position, that's going to measure pretty close to 6 1/2 inches, maybe 6 5/8. Then with it all the way open, that's going to measure a little bit closer to 8 5/8 to 8 3/4 of an inch. That's going to do it for today's look at the Valterra RV waste valve.

Customer Satisfaction Score:

Customer Reviews

Valterra Waste Valve for RV Gray Water Tank - 1-1/2" Diameter - Hub to Hub - T1001B

Average Customer Rating:  4.8 out of 5 stars   (73 Customer Reviews)

Replaces the valve for your RV's gray-water tank. 1-1/2" Diameter passage allows wastewater to travel freely when valve is open. The 1-1/2" Hubs slide onto 2 separate sewer pipes.


On a recent trip I took our old 2WD van down a 4WD goat track and destroyed the waste water plumbing system under the van. E-trailer staff provide excellent advise and customer service, and now I'm back on the road. Photos are "before" and "after". Thanks so much for all your help.


Replaced the grey water valve on our 2007 KZ spree. The original valve was inside the undercoating and was just too difficult to get to so we placed the new valve on the outside works great for less than $20.


I ordered this part from you instead of [online vendor] because I like to support businesses other than them. I was informed in an email that it would be delivered on the 31st so I ordered it. When it didn’t show I called and was informed that was an estimate but the email doesn’t say that. I will forward the email to you if you want. I needed this part on that date for a planned trip. So I managed to the get the part somewhere else in time to install it. The part part finally arrived on the 3rd and I refused delivery. Please refund my purchase. I have used etrailer in the past and was satisfied.


Easy installation. I lubed it well before installation. Smooth actuator action.


I bought this to replace a ball valve fitting. It was very hard to open the valve.
I am not using it on our camper. I am using it to drain my daughter's duck pond.
I can open this valve with just 2 fingers and it works great. So far, I love it and would buy it again. I don't have any pictures.



It works great. So much easier than the ball valve I was using.


Despite the fact that the box was pretty badly crushed when it arrived the parts were still in good condition. We have not used the parts yet but they look like they are good quality.


This was a perfect fit and replacement for my trailer.

Tommie C.


A year later and still no issues.


Great service on questions about my order. Was notified by the sales department that my order could not be shipped due to the manufacturer was behind in production on that particular part number. I called the sales department and they got me another product item number similar to the one I had ordered and got my order shipped out right away. Sales dept. said it would take 7 to 10 days before I would receive it. But I got it in 3 days. Thank you etrailer for taking care of me. Great service from sales/shipping dept.
Pete E.


I received the gray water valve much sooner than I had anticipated since I chose the cheapest shipping. I have not installed it on my camper since the weather just isn't cooperating. It looks like it will suit my needs perfectly.


Fast and accurate!!


Great product, but more importantly, great company! etrailer ships quickly, keeps you informed every step of the way and follows up to ensure everything was to your liking. Customer service which is sorely missed and greatly appreciated!


Fine, replaced a different brand, and I kept the original flanges; was concerned about mixing brands. The new valve section works as it should.


Valterra makes great products. Exact fit for replacing original motorhome plumbing.


Easy repair with OEM gate valves.


I wont get in installed until next week, but the gate valve shipped the same day and arrived a day early. I can't review the product but the C/S was great.


The product is what it is. etrailer has a good price and excellent customer service.


It showed up in a hurry . Worked great . I was able to isolate the kitchen sink .


Great replacement valve to use when the existing flanges are not true and flat.


Great customer service and prompt delivery. Product is as described


easy install for gray water valve


Looks good. I am going to wait for warm weather to install.



Installed and no problems.


Great customer service.

Jimi E.




Worked as expected. etrailer did a great job


we asked how and what we need to get they had it and came with out any problems was very good


It was a pleasure doing business. Fast shipping even to Alaska. Definitely be buying parts again when needed

Show More Reviews

See what our Experts say about this Valterra RV Waste Valves

  • Dimensions Of Valterra RV Waste Valve
    The Valterra RV Waste Valve, part # T1001B has an inside diameter of 1.9 inches and the outside of the port measures 2.37 inches. I went to our warehouse and measured the waste valve for you. I have attached a photo of the valve with the dimensions noted.
    view full answer...
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  • Replacement RV Waste Valve for 1-1/2 inch Valve
    The Valterra Waste Valve part # T1001B is the correct replacement for what you have. It is a 1-1/2 inch waste valve with 2 inch hubs that are designed to fit over 1-1/2 inch RV sewer pipe like you have.
    view full answer...
  • Recommended Replacement 1 1/2" Valve for a Grey Water Tank
    For your 2009 Coachman you can use the Valterra Waste Valve for RV Gray Water Tank # T1001B. This replacement valve will work great with your 1 1/2" grey water tank, and measures 8-3/4" with the valve open and 6-5/8" with the valve closed. Also, unfortunately all of our 1 1/2" valves are going to be cable actuated so you aren't going to be able to get away from that.
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  • Replacement Waste Valves Needed for 1989 Monitor Camper
    We have a wide selection of valves, many of which are the same as used by the OEM's. While I do not have the abilty to pull build sheets and the know the part number used by the OEM I am certain we can locate something that will work. If you are looking for valves that fit between the lines on your camper and the item shown in the attached image, please look at the Valterra Waste Valve 1-1/2" Diameter, # T1001B and the 3" Hub to 3" Hub, # T40B. If this does not fit what is needed,, please...
    view full answer...
    Image 1 for
  • Waste Valve with 1-1/2 Inch Diameter for PVC Pipe
    For a 1-1/2 inch waste valve you can use # T1001A with Valterra ABS Solvent Cement # A05-0303. The difference between # T1001A and # T1001B is the size of the openings. On T1001A the outer diameter is approximately 1-7/8 inches and inner diameter of 1-1/2 inches. For T1001B the outer diameter is 2-3/8 inches with an inner diameter of 1-7/8 inches.
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  • Replacement Light Brown Louvered Floor Vent For 10" X 2-1/4" Vent Opening
    The Dampered RV Floor Register # 37202-28915 is going to be the closest we have to the size you are needing. This fits a 10" x 2-1/4" opening and the overall dimensions are 11-3/4" x 3-3/4".
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  • Replacement Drain Valve For A Grey RV Water Tank
    The standard size of a water drain valve for grey tanks on most RV's is 1-1/2". For this 1-1/2" drain valve, I have three options for you to consider. The first option is the Valterra Waste Valve for RV Gray Water Tank part # T1001PBC. This valve does not include the pull handle. You will need the Valterra Cable with Valve Handle part # TC72PB in order to operate this valve. The next option with a plastic pull handle included is our Valterra RV Waste Valve part # T1001B. The last option...
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  • Replacement Gray Water Valve with 1-1/2" Diameter
    You can use the Valterra Waste Valve # T1001B to replace what has broken off, as it is a 1-1/2" diameter pipe that is designed for gray water systems. The challenge, as you're aware, is what to do about the broken pipe that is lodged there. You can try to chip it out and use a small length of PVC pipe to replace the broken end and attach it to the # T1001B with some ABS Solvent Cement # A05-0303. That's really the only way you're going to be able to accomplish this without cutting off...
    view full answer...
  • How To Replace a Seal On a Valterra Waste Valve
    I don't really have an exact write-up on replacing the seals for a Valterra Waste Valve like part # T1001B but I do have some info which may help. If you have a 3" then you can use part # T1002-7VP. This kit comes with both seals, front and back as well as the hardware so this is what I recommend using. The old hardware should be able to be removed with a few wrenches. Then, you can separate the pipes and remove the old seal. If you reverse the order above you can get the new seals installed...
    view full answer...
  • Extension Handles for Valterra Waste Valves
    The best option for you to use the Valterra Bladex Waste Valve part # T40B would be to add the Extension Rod part # T1046-12VP for 6" - 11" or part # TX36HPB for 36". I cannot confirm that the handle on your Thetford valve will work with the handle on the Valterra valve. If the grey water tank on your RV has 1-1/2" diameter piping then you can use the Valterra Waste Valve part # T1001B instead.
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  • Recommended Sewer and Gray Water Connections for RV Permanent Location with In-Ground Tanks
    For a permanent connection if you want the wye fitting you mentioned like the Double RV Waste Valves - Elbow - Rotating - 3" and 1.5" Hubs to 3" Spigot # T81 and then the Double RV Waste Valves - Elbow - Rotating - (2) 3" Spigots to 3" Hub # T85B. The actual manual handles will give you the manual shutoff you are seeking and they can be rotated so they don't come in contact with the other handles when installed together. It is recommended to use PVC instead of hoses for as much length...
    view full answer...

Do you have a question about this RV Waste Valve?

Info for this part was:

Employee Jameson C
Expert Research:
Jameson C
Employee Jeffrey L
Expert Research:
Jeffrey L
Employee Cole B
Installed by:
Cole B
Employee Amy B
Written by:
Amy B
Employee Halie H
Updated by:
Halie H

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