Never underestimate the importance of good replacement filters in a school ventilation system. Over 53 million children and 6 million teachers, administrators and other adults spending 6+ hours each day inside a school building nationwide, choosing the right...
MERV 13 filters are the minimum rating required for LEED-certified buildings. We’re happy to say that Twin City Filter Service now carries MERV13-16 filters. The New MERV 13-16 Filters We’re listened to your requests and added a new selection of MERV 13 and higher...
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