Is Spacer Needed to Fit Double RV Waste Valves # T80A to 3-1/2" Inside Diameter Outlet

Updated 06/24/2019 | Published 06/21/2019

Question:

The black water tank has a 3.5 inch inside diameter outlet. Is there a spacer available to make up the difference?

asked by: Jeff

Helpful Expert Reply:

You actually don't need a spacer to attach the Double RV Waste Valves # T80A to your current black water tank. Since you are measuring 3-1/2" for your outlet you have a hub. The 3" spigot end on this double waste valve has an outer diameter of 3-1/2" so it will fit perfectly in the hub of your current setup. In regards to the 3" measurement, that is actually the inner diameter of the pipe itself. If you measure past the hub fitting on your line you should see that it measures 3".

expert reply by: Jon G