what size filter you need

Need a replacement air filter? There’s a lot of talk about actual vs nominal measurements for filters and we’re here to help clear up any questions you may have. Actual measurement: The measurement you get when you measure the filter yourself (Usually will include ¾ and ½ sizes). Nominal measurement: The measurement printed on the side of the filter (Rounded up to … [Read more...] about Understanding Nominal and Actual Measurements for Filters