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Koch Multi-Pleat Series AB 20 x 25 x 5 MERV 8 Pleated Air Filter for Trion Air Bear - 3 Pack

Sale price $154.02 USD Regular price
Regular price $154.02 USD
Unit price $51.34 item
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Koch Multi-Pleat Series AB 20 x 25 x 5 MERV 8 Pleated Air Filter for Trion Air Bear - 3 Pack
Sale price $154.02 USD Regular price
Regular price $154.02 USD
Unit price $51.34 item

Product Details

The Koch Multi-Pleat Series AB is a MERV 8 pleated media filter built as a replacement for whole-home air cleaner cabinets. It replaces the 20 x 25 x 5 media in Trion Air Bear air cleaners. This case contains 3 filters. At a typical 6–12 month change, that is 18 months to three years of filters for one system.

Series AB uses a moisture-resistant frame that stays rigid in high humidity, galvanized wire on the downstream side to hold the media in place, built-in support fingers that keep the pleats evenly spaced, and a factory-installed gasket to seal the filter in the cabinet.

Is This the Right Size?

Air filters are sold by nominal size, the rounded size printed on the frame of your current filter. This filter measures 19-3/4" x 24-1/4" x 4-15/16". Koch builds it as a replacement for Trion Air Bear 20 x 25 x 5 media (the Trion part numbers ending in -102). It is not a Trion-branded part. Compare the size printed on your current media before ordering.

Not sure? Send us a photo of the label on your current filter and we will confirm the match before you order.

Specifications

Brand Koch Filter
Series Series AB
Koch Part Number 102-718-001
Nominal Size 20 x 25 x 5
Actual Size 19-3/4" x 24-1/4" x 4-15/16"
MERV Rating MERV 8
Frame Moisture-resistant, with factory-installed gasket
Media Support Galvanized wire downstream, built-in support fingers
Initial Resistance 0.07" w.g. @ 300 FPM
Quantity 3 filters

What MERV 8 Captures

MERV 8 is the everyday standard for residential systems. Under ASHRAE 52.2 a MERV 8 filter captures at least 70% of particles in the 3–10 micron range (household dust, lint, pollen, dust mite debris and mold spores) while keeping airflow resistance low enough for virtually any furnace or air handler.

Other Koch Options in 20 x 25 x 5

Replacement Schedule

Check the filter monthly. Deeper filters hold far more dust than 1" filters and typically last 6–12 months, or 3–6 months in homes with pets or heavy dust. Follow your equipment manual if it calls for a different interval. Install it with the airflow arrow on the frame pointing toward the blower.

Shop all Koch Filter air filters.

Genuine Koch Filter Replacement Filters

Koch Multi-Pleat filters sold by the full case, with the Koch part number, actual dimensions and case quantity listed on every product.

  • Koch part number on every listing
  • Case pricing on every filter
  • Common and hard-to-find sizes
Koch Filter FAQs

How do I know my size?
Match the size printed on the frame of your current filter. The actual filter is about 1/2" smaller than the nominal size so it slides into the slot.

Which MERV rating should I choose?
MERV 8 is the everyday standard. MERV 11 captures finer dust and pet dander. MERV 13 is Koch’s highest-efficiency pleated option. If your system struggles for airflow, stay at MERV 8 or 11.

How often should I change it?
Check 1" and 2" filters monthly and replace them at least every three months. Deeper 4" and 5" filters typically last 6–12 months.

Why are some sizes special order?
Less common sizes are made by Koch to order. Each listing shows whether it’s in stock or special order.

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