{"product_id":"aaf-flanders-10055-011818-furnace-filter-18x18x1-merv-4","title":"Aaf\/flanders 10055.011818 Furnace Filter 18x18x1 Merv 4","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe AAF\/FLANDERS 10055.011818 is a flat-panel spun fiberglass disposable furnace filter rated up to MERV 4. Sized at 18 inches x 18 inches x 1 inch, it installs in residential and light-commercial forced-air systems as a standard 30-day replacement filter. The spun fiberglass media captures airborne dust and lint, protecting blower components and heat exchangers from gross particulate buildup. No metal media retainers are used in the construction, keeping the filter lightweight and easy to handle. This SKU ships as a case of 12 filters, making it a practical stocking option for contractors and service companies maintaining multiple units.\u003c\/p\u003e\u003cp\u003eThis filter is suited for residential gas furnaces, heat pumps, and air handlers that accept a 1-inch flat-panel filter in an 18 x 18-inch nominal slot. Its 30-day service interval makes it appropriate for high-traffic or dusty environments where frequent changeouts are expected. HVAC technicians and property maintenance professionals commonly stock this size in quantity to support scheduled filter replacement programs on apartment complexes, small commercial buildings, and single-family homes.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eMERV 4 rating — captures dust, lint, and large airborne particulates\u003c\/li\u003e\n\u003cli\u003eSpun fiberglass flat-panel construction for lightweight, tool-free installation\u003c\/li\u003e\n\u003cli\u003eNo metal media retainers, simplifying disposal\u003c\/li\u003e\n\u003cli\u003eNominal size: 18 inches x 18 inches x 1 inch\u003c\/li\u003e\n\u003cli\u003eRecommended replacement interval: 30 days\u003c\/li\u003e\n\u003cli\u003eSold as a case of 12 filters per unit of measure\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement flat-panel filter for residential and light-commercial forced-air furnaces and air handlers accepting a nominal 18 x 18 x 1-inch filter slot.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eSet the system thermostat to off and shut down the air handler or furnace before replacing the filter. Confirm airflow direction markings on the filter frame align with the system airflow arrow before seating the panel. A 30-day inspection interval is recommended, particularly in environments with elevated dust or pet dander. Dispose of used fiberglass filters in accordance with local waste guidelines.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNominal Size\u003c\/strong\u003e: 18 inches x 18 inches x 1 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilter Media\u003c\/strong\u003e: Spun Fiberglass\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMERV Rating\u003c\/strong\u003e: 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilter Style\u003c\/strong\u003e: Flat Panel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMetal Media Retainers\u003c\/strong\u003e: None\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecommended Service Interval\u003c\/strong\u003e: 30 days\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 12 filters per case\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Weight\u003c\/strong\u003e: 4.6 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: AAF\/FLANDERS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 10055.011818\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"FLANDERS FILTERS","offers":[{"title":"Default Title","offer_id":51524549083442,"sku":"10055.01182","price":54.83,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/babb062d97752aec2bf8083850f9c9ee_e200b368-b157-4ac3-a391-cde8a6bf76dc.jpg?v=1785451342","url":"https:\/\/voomisupply.com\/products\/aaf-flanders-10055-011818-furnace-filter-18x18x1-merv-4","provider":"Voomi Supply","version":"1.0","type":"link"}