Custom Size PREpleat MERV 13 Extended Surface Filters (12 Filters)

Using the dropdowns below select the exact size you would like us to have your filters made, length x width.

Sale price$ 229.00

Standard filter depth will be 1" (actual size 3/4"). If 2" depth (actual size 1-5/8") is needed select the checkbox.

Price is based on size of custom filters and will update automatically.

Learn more about measuring your filter with this help article.


This filter is custom made to your exact size giving you a perfect fit to ensure no dirty air is bypassing your system.

The PREpleat M13 pleated filter has a low initial resistance and supports achievement of LEED® credits by significantly improving Indoor Air Quality (IAQ) and reducing energy consumption.

The PREpleat M13 filter provides an initial efficiency of MERV 13 per ASHRAE Standard 52.2 at a resistance of only .20" w.g. (2" depth) when operating at airflow velocity of 375 FPM—and only 0.30" at 500 FPM.

Superior Design and Construction

Media: 100% non-woven synthetic media manufactured from recyclable material.

Media Support: Diamond-shaped expanded metal maintains maximum support while avoiding air bypass.

Pleat Design: V-Pleat design minimizes resistance, keeping consistent pleat count, height, and shape.

Frame: Heavy-duty two-piece moisture-resistant frame includes diagonal and horizontal support members bonded to the media on the air entering and leaving sides. This is a durable frame for any commercial and industrial application.

Operating Temperature Limits: Maximum operating temperature is 180°F (82°C).


PREpleat M13 filters are designed for general air filtration in all types of cooling, heating, and ventilating systems. They can be used as prefilters to extend the life of higher efficiency filters or on their own. They are suitable for installation in front access holding frames and side access housings. These filters are excellent for upgrading from disposable panel filters, permanent filters, or media pads in metal frames where a higher level of cleaning is desired.

Filter Overview

  • High efficiency with low initial resistance
  • 100% synthetic recyclable high-loft media
  • 2-piece heavy-duty die-cut frame
  • Expanded metal backing
  • Double-wall frame
  • Diagonal grid supports for maximum strength
  • MERV 13
  • Quantity: 12 Filters
  • 1" and 2" depth available: 1" nominal = 3/4" actual size, 2" nominal = 1-5/8" actual size.
  • Starting at $229 per case ($19.08 per filter) with Free Shipping - Pricing is based on filter size

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Ordering Custom Filters

Select the length and width in the exact filter size needed with the dropdown menu options. Here is an example of how your size should be entered: 19-3/8 x 21-1/8 x 1

Fraction to decimal chart:

  • 1/8 = .125
  • 1/4 = .25
  • 3/8 = .375
  • 1/2 = .5
  • 5/8 = .625
  • 3/4 = .75
  • 7/8 = .875
Filter Chart Measure Ruler

Filter Fit Guarantee™

Custom Size Filter Disclaimer