Glasfloss GDS_20X25X1 Panel Air Filter 20x25x1

Product Description

The GLASFLOSS GDS_20X25X1 is a disposable fiberglass panel air filter built for demanding air-handling applications across commercial, industrial, and residential settings. Measuring 20 inches wide by 25 inches tall by 1 inch deep, it delivers 3.47 square feet of media area at a rated flow of 300 FPM. Initial resistance is 0.09 inches WC, with a final resistance of 0.5 inches WC. The heavy-duty one-piece craft-board frame uses a thermally bonded double-strut design that eliminates sharp edges, resists collapse, and holds geometry under sustained airflow. Licensed HVAC technicians and maintenance contractors are the typical installers.

The GDS_20X25X1 fits standard 20 x 25 x 1 filter slots in commercial rooftop units, air handlers, furnaces, and fan-coil units. The progressively dense fiberglass media provides strong dust-holding capacity relative to its face area, and the open media design offers 10 percent greater free area than traditional metal-grid filters. Its craft-board construction reduces carton weight and simplifies disposal without cutting hazards. This filter is suited for environments that require regular filter changeouts at high air volumes.

Key Features

• Progressively dense fiberglass media for improved dust-holding capacity
• Heavy-duty one-piece craft-board frame with thermally bonded double-strut construction
• 10 percent greater open media area compared to traditional metal-grid filters
• Disposable design with no sharp edges for safer handling and easier disposal
• Rated to 180 degrees F continuous operating temperature
• Meets UL 900, HARDI, and NAFA applicable standards

Compatibility

Designed as a direct-fit replacement for standard 20 x 25 x 1 inch filter openings in commercial, industrial, and residential air-handling equipment.

Installation Notes

Installation is performed by licensed HVAC technicians or qualified maintenance personnel. Power down or de-energize the air-handling unit before removing the old filter and inserting the replacement. Confirm airflow direction arrows on the frame align with system airflow before securing the filter in the rack. Dispose of the used filter according to local waste regulations; the craft-board frame is free of metal components, simplifying disposal.

Technical Specifications

• Dimensions: 20 inches W x 25 inches H x 1 inch D
• Media Area: 3.47 square feet
• Flow Rate: 300 FPM
• Initial Resistance: 0.09 inches WC
• Final Resistance: 0.5 inches WC
• Media Type: Fiberglass
• Frame: Heavy-duty one-piece craft-board
• Filter Type: Disposable panel
• Temperature Rating: 180 degrees F
• Applicable Standards: UL 900, HARDI, NAFA
• Application: Commercial, Industrial, Residential
• Country of Origin: USA

Standard Information

• Brand: GLASFLOSS
• Manufacturer Part Number: GDS_20X25X1