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RV sewer elbow combines rotating black-water and gray-water waste valves. 3" Hub slides over black-water line. 1-1/2" Spigot slides into gray-water line. Bayonet cap fits over the 3" lug fitting that connects to your sewer hose.
Features:
This RV sewer elbow with rotating valves is a part of your motor home's waste management system. The elbow combines the flow of wastewater from your gray-water tank and your black-water tank. And the valves can be rotated as desired during setup to make it easier to reach. Connect your sewer hose to the 3" lug fitting on the elbow and open the valves to drain your holding tanks.
Customer Satisfaction Score:
98% were satisfied with this product
2% of customers were not satisfied
Ratings & Reviews

Heather A.
4/24/2026
That sounds like a really solid upgrade. Moving both your black and gray tanks to 3" plumbing and using flexible rubber fittings is a smart call especially for future serviceability. It’s great to hear the valve fit right into your setup and worked exactly as expected. Hopefully that helps prevent any more issues with those pipe seams going forward. Thanks for sharing your experience! What kind of RV do you have?

Jerred H.
9/23/2026
Thanks for the picture Jose. The new valve looks great. Those sure are difficult to install so glad you were able to get it all set up and it fit so well.
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Christopher H.
8/14/2026
The installation looks clean Jake! Really appreciate the before and after photos as well. Feeback like this really helps the next person looking to tackle this themselves.