So I’m in a discussion with another tech and he is telling me that 4” filters are more restrictive than 2”. Logic tells me this cannot be as 4” has more media and therefor more ways for air to pass (assuming both are made from the same media and same merv). Am I missing something? If the 4” is more restrictive then it has to be a lesser quality filter, correct?

Posted by Deleted (8831e793) at 2021-02-18 01:02:25 UTC