I have a 2005 Montana 3685FL - My check valve went bad and I had to get a new dish. I bought this one from Amazon. The fit was close but would have liked to get the OEM size. Also, the check valve in this one sticks and it pulsates the water host when flushing the toilet. I have to run the electric pump to get water to flow. I believe it's just a junk check valve . I have excellent pressure coming it. So, either I got a bad unit and cam buy another one or was looking for recommendation on what other brands you used to replace yours?
Amazon link
http://a.co/1kM7cC1