Glasfloss PTA_18X18X1 Disposable Panel Air Filter 18x18x1

Product Description

The GLASFLOSS PTA_18X18X1 is a disposable panel air filter built for residential, commercial, and industrial HVAC systems. Measuring 18 inches wide by 18 inches tall by 1 inch deep, it delivers 300 FPM airflow with an initial resistance of 0.1 inches WC and a final resistance of 0.5 inches WC. The filter uses a heavy-duty media supported by a rigid one-piece craft-board frame that holds its shape under sustained airflow conditions. A metal grid on the air-leaving side reinforces the media and prevents blowout at higher velocities. HVAC technicians and facilities maintenance personnel install this filter in standard 18x18x1 filter housings and air handlers. It carries an Energy Star rating and is manufactured in the USA.

The PTA_18X18X1 is suited for a wide range of applications including residential forced-air furnaces and air handlers, light commercial rooftop units, and industrial air-handling equipment. With a temperature rating of 180 degrees F, it holds up in equipment that sees elevated operating conditions. The 2.25 square foot media area and 300 FPM flow rate make it appropriate for standard residential and commercial filter tracks where a 1-inch disposable panel filter is specified. The filter meets UL 900, HARDI, and NAFA applicable standards, making it suitable for installations where third-party certification is required.

Key Features

• Rigid one-piece craft-board frame resists collapse and moisture deformation
• Heavy-duty media with metal support grid on the air-leaving side prevents blowout
• Rated for airflow up to 300 FPM with 0.1 inches WC initial resistance
• Temperature rated to 180 degrees F for use in high-heat applications
• Meets UL 900, HARDI, and NAFA standards
• Energy Star rated and manufactured in the USA
• Disposable design for straightforward changeout with no cleaning required

Compatibility

Designed as an OEM-style replacement or maintenance-stock disposable panel filter for residential, commercial, and industrial HVAC systems requiring an 18x18x1 inch filter.

Installation Notes

A licensed HVAC technician or qualified maintenance personnel should power down the air handler or furnace at the disconnect before servicing the filter rack. Confirm airflow direction indicated on the filter frame matches the system airflow direction before inserting. Standard filter changeout requires no tools, but follow site-specific lockout/tagout procedures in commercial and industrial settings. Dispose of used filters in accordance with local waste regulations.

Technical Specifications

• Overall Width: 18 inches
• Overall Height: 18 inches
• Overall Depth: 1 inch
• Media Area: 2.25 square feet
• Flow Rate: 300 FPM
• Initial Resistance: 0.1 inches WC
• Final Resistance: 0.5 inches WC
• Temperature Rating: 180 degrees F
• Frame: Heavy Duty 1-Piece Craft-Board
• Media: Heavy Duty with metal exit-side grid
• Filter Type: Disposable
• Application: Residential, Commercial, Industrial
• Applicable Standards: UL 900, HARDI, NAFA
• Energy Star Rated: Yes
• Country of Origin: USA

Standard Information

• Brand: GLASFLOSS
• Manufacturer Part Number: PTA_18X18X1