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.