Columbia HP Pleated Filters come standard with 14 pleats per lineal foot for 1” filters, 10 pleats per lineal foot for 2” filters and 9 pleats per lineal foot for 4” filters.
• Custom made-to-order sizes are also available.
• The Columbia HP8 achieves a MERV 8 (minimum efficiency reporting value) when tested to the ASHRAE 52.2 testing method and has an average efficiency of 30-35%.
• Columbia HP8 Pleated Air Filters are listed by Underwriters Laboratories as meeting Class II
specifications in the U.L. 900 standard. Suggested operating temperatures should not exceed
• The filter media is thermally bonded to corrosion resistant 28-gauge expanded metal with a 95% open face area and is enclosed by a 2-piece die-cut frame made from moisture resistant beverage board. It is bonded to the internal surfaces of the frame to eliminate air by-pass and provide
pleat stability during operation. The filter media is composed of 100% synthetic fibers that resist absorption of water and is electrostatically charged to provide superior dust holding capacity