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4-in-1 Threaded adapter makes it easy to connect to dump station. The 90-Degree elbow reduces stress on hose by preventing it from bending sharply. 3/4" Threaded connector lets you drain a second gray water tank. Adapter threads onto sewer hose.
Features:
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Today we're going to be taking a look at the EZ Coupler four-in-one threaded RV sewer hose adapter with a 90-degree elbow fitting, part number F02-3305VP. You can pick up just the sewer adapter with part number F02-3103 or the threaded attachment with part number F02-3105. This threaded adapter makes it easy to connect your RV sewer hose to a dump station. It's going to work with your standard 3-inch RV sewer hose. It simply threads in place for a gas-tight fitting. There are no clamps or hardware required. With it in place, we have our slip fitting that can easily be attached to any dump station. It also includes an adapter with a 3-inch, 3.5-inch, and 4-inch thread should your dump station require it.
It simply slips in place over your slip fitting. The 90-degree elbow reduces stress on the hose by preventing it from bending. It features a 0.75-inch threaded fitting so you can connect a second gray water tank. When you're all done, you can remove the slip fitting and place on the drip cap for storage. Just a tip, when draining your tanks, you want to be sure and empty out your black water tank first, followed by your gray water tank. That will help flush out any remaining solid waste particles. That's going to complete our look at the EZ Coupler four-in-one threaded RV sewer adapter with a 90-degree elbow fitting.
Customer Satisfaction Score:
96% were satisfied with this product
4% of customers were not satisfied
Ratings & Reviews

Dave B.
10/3/2022
Works great, like everything from etrailer.

Mark
9/29/2025
Still working great, never leaks or comes loose!

Gwendolyn Y.
7/17/2025
Happy to hear! Where do you have your permanent spot at?

Robert
9/13/2023
Still working well and helping me maintain tank cleanliness by monitoring the outflow as well as volume.
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Tim
4/30/2026
This product has helped on a number of ways to hook up your sewer hose. Without the various attachments, I wouldnt of been able to dump at a few campgrounds Ive stayed at.