HARIO Paper Filters For Syphon Vacuum Immersion Coffee Makers, Natural, 100 Pack, fabric, Syphon 100 Pack, CF-103E

Q: Will this fit Yama Glass 5 cup?

As long as you have the correct filter holder it should be fine. The filter holder should unscrew in the middle, place filter in the middle, screw back together and enjoy

Q: Will these filters fit a 3-1/2" perc basket? I know Melitta makes a white filter, but I won't use a bleached paper product.

These filters sized only good for "Hario Coffee Syphon", not other regular coffee makers.

Q: Will this fit mca-3? or could someone post the radius or diameter? thank you.

http://www.amazon.com/Melitta-3-5-Disc-Coffee-Filter/dp/B001M8K5TU/ref=sr_1_8?ie=UTF8&qid=1454673022&sr=8-8&keywords=coffee+filters+melitaThese Melita brand 3-1/2" also work in our vac pot, but they are definitely wider than this Hario CF103-E, the hole is about the same size.