Airex TA18201 Fiberglass Panel Air Filter 18x20x1 Merv 4-5

Product Description

The AIREX TA18201 is a disposable fiberglass panel air filter sized 18 inches x 20 inches x 1 inch, designed for residential and light commercial air conditioning and HVAC applications. It uses Polystrand fiberglass media encapsulated in a protective polymer coating, producing a filtration layer that is rated MERV 4-5 (MER Value 4 to 5). The media is loosely spun on the air-entering side and progressively woven tighter on the air-exiting side, forming a heavy laminated backing. This graduated construction increases dust-holding capacity, reduces surface loading, and adds structural integrity without requiring a metal backing. Installed by HVAC technicians and qualified service professionals.

The TA18201 is suited for use in standard residential and light commercial air conditioning units where a 18 inches x 20 inches x 1 inch filter slot is required. The disposable design simplifies routine filter changeouts, making it appropriate for scheduled preventive maintenance programs. Its temperature rating of 180 degrees F continuous and 200 degrees F intermittent makes it compatible with a range of forced-air system operating conditions. The heavy-duty moisture-resistant white kraft board frame holds its shape in high-humidity environments typical of cooling season operation.

Key Features

• Polystrand fiberglass media encapsulated in polymer for safer, nonrespirable fiber construction — continuous strand diameter exceeds 3.5 microns
• Graduated media density: loosely spun on the inlet face, progressively tighter toward the outlet face, improving dust-holding capacity
• MERV 4-5 filtration efficiency suitable for capturing larger airborne particulates in standard HVAC systems
• Heavy-duty moisture-resistant white kraft board frame maintains structural integrity in humid conditions
• Disposable construction supports quick, low-cost filter replacement during routine maintenance
• UL-applicable standard compliance

Compatibility

Designed as an OEM-style replacement disposable panel filter for air conditioning units requiring an 18 inches x 20 inches x 1 inch filter. Verify filter slot dimensions before installation.

Installation Notes

Installation of this filter should be performed by a licensed HVAC technician or qualified service professional. Always shut off power to the air handler or furnace at the disconnect or breaker before opening the filter cabinet. Confirm airflow direction arrows on the filter frame align with the system airflow direction prior to seating the filter. Dispose of used filters in accordance with local waste regulations and follow a routine replacement schedule based on system usage and environmental conditions.

Technical Specifications

• Filter Type: Disposable Panel Air Filter
• Media: Fiberglass (Polystrand)
• Overall Width: 18 inches
• Overall Height: 20 inches
• Overall Depth: 1 inch
• MERV Rating: 4 to 5
• Temperature Rating: 180 degrees F continuous, 200 degrees F intermittent
• Frame: Heavy Duty Moisture Resistant White Kraft Board
• Applicable Standard: UL
• Application: Air Conditioning Unit

Standard Information

• Brand: AIREX
• Manufacturer Part Number: TA18201