** DO NOT USE ** McMaster Carr Check Valve 47245K37

[Jaxom]

They can also be found as "EGR vacuum switching valves" on many Toyota, Honda, and Nissan products. It'll have two 1/8" ports at right angles on one end and a single 1/8" port on the other end, and usually a single bolt with a 10mm head holding it to a bracket or something. One port is common, the other two are normally open and normally closed, although I'll have to look up which is which. You could get one from an auto parts store, but junkyards are better because you can snip off 6" of wiring harness to go with it. That makes the install much easier.

[HHOinKY]

I got my stuff today and it looks fine. It's the same as a turbo piece I took off a saab. I guess I have 2 now.

[Zymosan]

Just so you know, according to the handy-dandy chemical resistance chart in the Grainger catalog Viton and KOH are not compatible.
It says "severe effect, not recommended.