Aaf/flanders 84858011820 Pleated Air Filter 18x20x1 Merv 8

Product Description

The AAF/FLANDERS 84858011820 is an 18 x 20 x 1 inch MERV 8 pleated air filter from the NaturalAire Standard product line. Built with 100% synthetic wire-backed media and a clay-coated frame, this filter delivers reliable mechanical filtration for residential forced-air HVAC systems. At MERV 8, it captures a broad range of airborne particulates including pollen, dust and lint, dust mites, pet dander, mold spores, bacteria, and virus carriers. Rated for a 90-day service interval under normal operating conditions, this filter is a direct drop-in for routine filter replacement cycles in standard 1-inch filter slots.

This filter is intended for use in residential and light-commercial forced-air systems where a 18 x 20 x 1 inch slot is specified. It suits gas furnaces, air handlers, and heat pump systems equipped with standard 1-inch return-air filter racks. The synthetic wire-backed media maintains its shape under normal airflow without collapsing, which helps sustain consistent pressure drop performance across the rated service period. Licensed HVAC technicians and property maintenance personnel commonly stock this filter in multi-packs for scheduled preventive maintenance programs.

Key Features

• MERV 8 filtration rating — captures pollen, dust mites, pet dander, mold spores, bacteria, and virus carriers
• 100% synthetic wire-backed media maintains structural integrity under airflow
• Clay-coated frame resists moisture and holds shape within the filter rack
• 90-day rated service life under normal residential operating conditions
• Nominal size 18 x 20 x 1 inches — fits standard 1-inch filter applications
• Sold in a 12-unit case pack for bulk restocking and PM programs

Compatibility

Designed as an OEM-style replacement filter for residential and light-commercial forced-air HVAC systems accepting a nominal 18 x 20 x 1 inch filter.

Installation Notes

Filter replacement is performed by licensed HVAC technicians or qualified maintenance personnel. Set the system thermostat to OFF or cut power at the disconnect before opening the filter access panel. Always install the filter with the airflow direction arrow on the frame pointing toward the blower. Do not operate the system without a filter in place, as unfiltered air can contaminate the heat exchanger and blower assembly.

Technical Specifications

• Nominal Size: 18 x 20 x 1 inches
• MERV Rating: 8
• Media Type: 100% Synthetic Wire-Backed
• Frame Material: Clay-Coated Cardboard
• Rated Service Life: 90 days
• Package Quantity: 12 per case
• Weight: 7 pounds (per case)

Standard Information

• Brand: AAF/FLANDERS
• Manufacturer Part Number: 84858011820