{"product_id":"glasfloss-gds_18x20x1-fiberglass-panel-air-filter-18x20x1","title":"Glasfloss GDS_18X20X1 Fiberglass Panel Air Filter 18x20x1","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe GLASFLOSS GDS_18X20X1 is a disposable fiberglass panel air filter measuring 18 x 20 x 1 inches, designed for use in forced-air HVAC systems across commercial, industrial, and residential applications. The filter uses progressively dense fiberglass media thermally bonded to a heavy-duty one-piece craft-board frame, delivering an initial resistance of 0.09 inches WC and a final resistance of 0.5 inches WC at a rated face velocity of 300 FPM. The double-strut frame construction provides 10 percent greater open media area than traditional metal-grill filters, improving dust-holding capacity while allowing for safer, easier disposal without sharp edges. Licensed HVAC technicians and mechanical contractors are the primary installers of this product.\u003c\/p\u003e\n\u003cp\u003eThis filter is suited for standard 1-inch filter applications in light commercial air handlers, rooftop units, residential furnaces, and split-system air handlers where a cost-effective disposable panel filter is specified. Its heavy-duty craft-board frame holds up in commercial and industrial environments where higher airflow rates and frequent filter changes are common. The design is rated for temperatures up to 180 degrees F, making it appropriate for systems that see elevated operating conditions. It carries UL 900, HARDI, and NAFA certifications and is manufactured in the USA.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eProgressively dense fiberglass media for effective particulate capture across its service life\u003c\/li\u003e\n  \u003cli\u003eHeavy-duty one-piece craft-board frame eliminates sharp edges for safer handling and disposal\u003c\/li\u003e\n  \u003cli\u003eDouble-strut reinforced construction delivers 10 percent greater open media area than traditional metal-grill filters\u003c\/li\u003e\n  \u003cli\u003eRated to 180 degrees F for use in higher-temperature HVAC applications\u003c\/li\u003e\n  \u003cli\u003eUL 900, HARDI, and NAFA certified; manufactured in the USA\u003c\/li\u003e\n  \u003cli\u003eDisposable design reduces service time and carton weight compared to metal-frame alternatives\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a disposable panel filter replacement for residential, commercial, and industrial HVAC systems requiring an 18 x 20 x 1 inch filter slot.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by licensed HVAC technicians or qualified mechanical contractors. Always shut down the air handler or furnace at the disconnect before replacing the filter. Verify airflow direction on the filter frame matches system supply direction before seating the filter. Dispose of used filters per local waste-handling requirements, as fiberglass media should not be re-used or cleaned.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions\u003c\/strong\u003e: 18 x 20 x 1 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMedia Area\u003c\/strong\u003e: 2.5 square feet\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMedia Type\u003c\/strong\u003e: Fiberglass\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFrame\u003c\/strong\u003e: Heavy-Duty 1-Piece Craft-Board\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFilter Type\u003c\/strong\u003e: Disposable Panel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFace Velocity\u003c\/strong\u003e: 300 FPM\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInitial Resistance\u003c\/strong\u003e: 0.09 inches WC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinal Resistance\u003c\/strong\u003e: 0.5 inches WC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTemperature Rating\u003c\/strong\u003e: 180 degrees F\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Commercial, Industrial, Residential\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCertifications\u003c\/strong\u003e: UL 900, HARDI, NAFA\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e: USA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: GLASFLOSS\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: GDS_18X20X1\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GLASFLOSS","offers":[{"title":"Default Title","offer_id":51283949879602,"sku":"GDS_18X20X1","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/309277575.webp?v=1781063973","url":"https:\/\/voomisupply.com\/products\/glasfloss-gds_18x20x1-fiberglass-panel-air-filter-18x20x1","provider":"Voomi Supply","version":"1.0","type":"link"}