M11-20X25X2 MFG #: 5256941944
  • Buyer STOR
  • Size 20" x 25"
  • Brand Clarcor
  • Thickness 2"
  • MERV Rating 11
Parker Hannifin Corp. / Clarcor Air Filtration Products (Purolator) PAF 11™ 20" x 25" x 2", 2170 CFM, MERV 11, White Electrostatic Synthetic, Hydrophobic Fiber Media, Medium Efficiency, Extended Surface, Pleated, Panel Air Filter

Purolator's PAF 11 filters are medium-efficiency, extended surface, pleated air filters. Specifically manufactured for system applications requiring improved medium-efficiency, non-shedding filtration media. Outperforms similar products with respect to initial efficiency, and average efficiency providing optimum filter service life. Effective in single filter applications or as improved pre-filter substitutes for disposables, permanent metal filters or media pad/frame filters.

Features & Benefits

  • Synthetic media made up of continuous hydrophobic fibers which do not absorb moisture and can withstand turbulent, high velocity conditions
  • Fibers are needled to eliminate the need for chemical binders that could promote microbial growth or generate VOCs
  • Improved overall particle size efficiency due to continuous fiber structure and dual-stage electrostatic enhancement which captures an increased amount of smaller particulate than conventional glass media
  • Enclosed in a two-piece, high wet-strength beverage board frame
  • A fully bonded double-wall frame combines with the integral corner flaps and forms a rugged, durable filter which will not rack, warp or leak under normal operating conditions
  • To ensure no dirty air bypass, the media pack is securely bonded to the periphery of the frame with solvent-free, water-based glue


  • Type: Medium Efficiency, Extended Surface, Pleated
  • Overall Width: 19-1/2 Inch
  • Overall Height: 24-1/2 Inch
  • Overall Depth: 1-3/4 Inch
  • Media: White Electrostatic Synthetic, Hydrophobic Fiber
  • Media Area: 15.1 Square Foot
  • Number of Pleats: 15 per Foot
  • MER Value: 11
  • Flow Rate: 2170 CFM at 625 FPM
  • Resistance: 0.3 Inch WG (Initial), 1 Inch WG (Final)
  • Temperature Rating: 200 Deg F
  • Frame Detail: 2-Piece, Moisture Resistant, High Wet Strength Beverage Board
  • Application: Hospital, General Health Care Facility, Food Processing Plant, Telecommunication, Pharmaceutical and Semi-Conductor Manufacturing
  • Applicable Standard: ASHRAE 52.2, UL (Canada and US), UL 900
  • Nominal Size 20 Inch Width x 2 Inch Depth x 25 Inch Height