Check out the plumbing section at the local hardware store......years ago I had one made out of a 1/2" to 1/4" 90 degree reducer and a 2 1/2" long 1/4" pipe....cast iron pcs are threaded and you can assemble almost any configuration you want in a matter of seconds.....the threads also hold the screen in place.

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These are a bit large.......but you get the idea.