GeneralAire pleated media filter 3-pack packaging ready for AC-1 replacement
GeneralAire pleated filter expanded showing full-height pleats for improved airflow

GeneralAire

GeneralAire Pleated Media Filter 12758 – 3-Pack Special for AC-1 | MERV 11 Replacement

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$170.80

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Why customers choose TaskHolt Tools

Overview

Introducing the GeneralAire 12758 Pleated Media Filter, a genuine OEM replacement available as a value-packed 3-pack. Built for GeneralAire AC-1 air cleaners, this expanded type filter uses pleat spacers to maximize the filtration surface while maintaining steady airflow. With a MERV 11 rating, it supports reliable indoor air processing for everyday household conditions without requiring extra effort from your system.

Expanded design for daily filtration

Compared with traditional flat media, the pleated design creates a larger filtration surface within the same frame space. This helps capture dust, allergens, and other particulates as the air moves through the filter. The included pleat spacers help keep the structure evenly spaced, preserving filtration performance over time.

Fit and compatibility

The filter measures 19 5/8 by 24 3/8 by 4 3/4 inches and is offered as the OEM replacement for GeneralAire AC-1 and AC-22 units. It also appears in compatibility lists for Bryant 902BX, Carrier 31MF020 and 31MF120, as well as Source 1 S1-MAC11202506 and S1-FM11202506. This broad compatibility can simplify replacements in homes with multiple brands.

What’s in the 3-pack

  • Three OEM pleated media filters part 12758
  • MERV 11 rated filtration for standard home use
  • Expanded Type design with pleat spacers for better surface area
  • Shipped in collapsed accordion form for compact packaging
  • Ready-to-expand inside your unit using existing frame spacers

How to install and maintain

  • Expand the collapsed filter inside the frame using the pleat spacers provided
  • Insert into the AC-1 or compatible housing until seated
  • Replace on schedule to maintain airflow and filtration efficiency

FAQ

Q: What is included in the GeneralAire 12758 3-pack?

A: Three OEM pleated filters, part 12758, designed for AC-1 and compatible models.

Q: How do I install the filter in my AC-1?

A: Expand the collapsed filter using the pleat spacers, then slide it into the frame following your unit’s instructions.

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