Replacement Valterra Waste Valve for RV Gray Water Tank
Updated 08/27/2026 | Published 08/22/2026
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Question:
The t18c valve can i unbolt. origional valve and bolt this directly to it. is the only difference in TR38A and t18c the y?
asked by: LARRY R
Expert Reply:
That is correct Larry and you sure can. The Double RV Waste Valves item # T18C has a a standard "T" shape and the Double RV Waste Valves item # TR38A branches of in a Y style angle. Both of them fit a 3" hub and 1-1/2" spigot.
The Valterra Waste Valve for RV Gray Water Tank item # T1001B will replace the 1-1/2" waste valve on both the item # TR38A and item # T18C. It'll simple bolt in in place of the current one you have installed. It'll keep you from having to replace the entire assembly.
What kind of RV do you have? Feel free to answer this and throw in any other questions you have, where it says Add Comment.
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Product Page this Question was Asked From
Valterra Waste Valve for RV Gray Water Tank - 1-1/2" Diameter - Hub to Hub
- RV Waste Valves
- Straight Valve
- Single Waste Valve
- 1-1/2 Inch Valve Body
- Manual
- 1-1/2 Inch Hub
- Stationary Valve
- Valterra
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