Fuel injector crush filters

[JJR512]

I'm looking for a source of the little mesh filters, aka crush filters, that go in the inlet side of the fuel injectors.

I can find lots of that kind of item on eBay, but there are different sizes, and I don't know exactly what to get for my car ('86 944 NA).

So I'm hoping someone can tell me with absolute certainty what size I need, or can point me to a source that has this filter with a version clearly labeled as for my car.

Pelican Technical Article: 944 Fuel Injector Clean & Reseal read last comment at bottom.