Replacement RV Waste Valve Setup for Gray 1-1/2" Diameter Outlet

Updated 05/19/2023 | Published 05/18/2023

Question:

Hello. I am looking for an RV gray tank dump valve. It would be the valve that connects to my sewer hose via the twist lock. My sewer hose is 3.5 inches outer diameter. My gray tank line is 2 inch outer diameter and 1.5 inch inner diameter. Can you give me a listing of an item that you may have? Thanks!

asked by: Evan

Helpful Expert Reply:

All of our sewer hoses are designed to connect to the larger 3" opening since this is the standard.

Normally what you'll see is something like the Dometic Double Waste Valve Setup # TR38A which has the gray tank connecting to the black tank opening, and they are just separated by the different-sized valves.

If you're talking about a 1-1/2" replacement waste valve then we do carry those as well, which you can filter through in the linked selection.

If you are looking for something a little different please let me know and send in some photos and I can see if it's something we are able to help you out with!

expert reply by: Jon G