Specifications include, but are not limited to: ITEM #1: FILTER MEDIA SPECIFICATIONSPleated Filter 1" & 2" shall be a lofted non-woven,media composed of non-dyed natural cotton andsynthetic fibers. When using ASHRAEA testingmethod 52.1- 1992, filters shall have an averageefficiency of not less than 30% and have anaverage arrestance of not less than 90% at3.5-micron particle size. The Minimum EfficiencyRating Value or MERV shall be 8 or higher, basedon ASHRAE Test Standard 52.2. Filter shall beenclosed in a two-piece heavy duty, high wetstrength beverage board frame, with a thickness of.028" - .030". Media support shall be a corrosionresistant 28 gauge expanded metal grid, allowinga minimum of 95% open face area.
