Why are there so many filter companies in Maryland?

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This is a question I hear often on my travels.  What is it about Maryland that attracts the greatest concentration of filter knowledge?  Blue Crabs, the fabulous Eastern Shore, Fishers popcorn, Dolle’s Salt Water Taffy?  A 2011 article in Microwave Journal investigated this subject, and the answer is not as complex as you might think.  Give it a read; Made in Maryland: Filter Lore from Gaithersburg to the Eastern Shore.  Reactel is proud to be a part of Maryland’s filter legacy for the past 41 years.  Please contact us with your questions or requirements.