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Difference Between Valterra # T81, # T81A, and # T81B Double RV Waste Valves  

Question:

Valterra valve T81 T81A and T81B. What is the difference in these 3 valves? Can you help me, I need to order one and I dont see any difference other than cost Thanks

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Expert Reply:

The difference between the three Valterra Double RV Waste Valves referenced in your question has to do with their fittings, specifically their use of hubs or spigots. Basically a spigot (also referred to as the "male" fitting) will go inside of a hub/socket while a hub (female) goes over a spigot.

The particular waste valve you need will be specific to your application and existing setup.

The Valterra # T81 has a 3 inch hub and a 1-1/2 inch spigot.
The Valterra # T81A has a 3 inch spigot and a 1-1/2 inch spigot.
The Valterra # T81B has a 3 inch hub and a 1-1/2 inch hub.

I have attached a couple short video reviews on these assemblies that you can check out as well.

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Chris R

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