Prefilter Air Filters | McMaster-Carr

Filter by

Filter Type

Thickness

HVAC Filter Trade Size

For Removing

Roll/Pad Width

Color

Roll/Pad Length

Pores per Inch

Material

Construction

MERV Filter Rating

Reusable

Frame Material

For Use With

Air Filter Performance

Maximum Temperature

DFARS Specialty Metals

Exempt

Filter Efficiency @ 3 Microns

Width

REACH

RoHS

Export Control Classification Number (ECCN)

EAR99

Surface Treatment

Tacky

Length

4" to 23"

Removes Particle Size Down To

Less than 25 μm

System of Measurement

Inch

Forward

How can we improve?

380 Products

About Air Filter Efficiency Ratings

Panel Air Filters

These filters are typically used as replacements in HVAC equipment.

Made-to-Order Panel Air Filters

Create a custom-sized filter or protective layer for expensive filters.

Reusable Metal Panel Filters

Also known as metal mesh filters. These filters can be washed and reused.

Quick-Disconnect Reusable Metal Panel Filters

Magnetic strips on the back of the frame make these filters easy to install and remove.

Air Filter Rolls and Pads

Air Filter Pads

Cut these pads to the size you need.

Prefilter Air Filter Rolls

These rolls are an economical choice for protecting more expensive filters that catch finer particles.

Prefilter Air Filter Pads

These pads are an economical choice for protecting more expensive filters that catch finer particles.

Reusable Air Filter Rolls

Cut these washable, reusable rolls to the size you need.

Reusable Air Filter Pads

Wash and reuse these pads. Cut to the size you need.

Reusable Air Filter Sample Packs

Determine the right pores per inch for your air filtering application—you'll receive several small samples with different pores per inch.

Electronic Equipment Air Filter Pads

Designed for use with electronic equipment, these pads can withstand prolonged exposure to heat and humidity.

Air Filter Rolls for Automatic Roll Machines

Replace the filter roll in your automatic filtering equipment.