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filters

  1. Commercial HVAC Forum
    Dirty, clogged air filters make equipment work harder and waste energy. But it takes way too much of your energy to find replacements for discontinued or hard-to-find air filters. Why not just order custom air filters instead of wasting time searching for replacements? Permatron crafts custom...
  2. HVAC Tools and Equipment
    Recently patented a tool and process which allows a user (residential and commercial) to change an air filter located in the ceiling without a ladder. For the last time a ladder is needed to convert the filter grill (no other tools needed), after this it only takes 20 seconds to change the...
  3. New Member Introductions
    For the last 4 years I have been working on and patented a tool which allows a user (residential and commercial) to change an air filter located in the ceiling without the need of a ladder (20 seconds or less). A video can be seen at 123inventions.com page 14 under Contact Robert. This tool is...
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