{"product_id":"filter-king-af18x18x1-m11-merv-11-air-filter-18x18x1","title":"Filter King AF18x18x1-M11 Merv 11 Air Filter 18x18x1","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe FILTER KING AF18x18x1-M11 is a MERV 11 pleated air filter designed for residential and light commercial HVAC systems. With a nominal size of 18x18x1 inches and an actual size of 17.5 x 17.5 x 0.75 inches, this filter fits standard 1-inch filter slots without modification. The MERV 11 rating means it captures finer particulates than lower-rated filters, including dust, pollen, mold spores, pet dander, and some fine dust particles. Sold in packs of 10, this filter is a practical stocking choice for service contractors and property managers maintaining multiple units on a regular replacement schedule.\u003c\/p\u003e\u003cp\u003eThis filter is suited for forced-air heating and cooling systems using standard 1-inch filter tracks. Typical applications include residential furnaces, air handlers, and heat pumps where a step up from basic filtration is required without the added static pressure of higher MERV ratings. The 10-unit pack quantity makes it a logical bulk-buy for technicians servicing multiple properties or homeowners on a quarterly change-out schedule.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eMERV 11 rating captures dust, pollen, mold spores, and pet dander\u003c\/li\u003e\n\u003cli\u003eNominal size 18x18x1 inches fits standard 1-inch filter slots\u003c\/li\u003e\n\u003cli\u003eActual size 17.5 x 17.5 x 0.75 inches for proper fit without binding\u003c\/li\u003e\n\u003cli\u003ePleated media design increases surface area for improved airflow and particle capture\u003c\/li\u003e\n\u003cli\u003eSold in a 10-pack for bulk stocking and scheduled maintenance programs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement for residential and light commercial forced-air HVAC systems requiring a 1-inch filter with a nominal size of 18x18x1 inches.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eAir filters of this type are installed by HVAC technicians or qualified building maintenance personnel. Always shut down the air handler or furnace at the disconnect or thermostat before replacing the filter. Confirm the airflow direction arrow on the filter frame is oriented toward the blower, not the return. Check the filter track for debris or deformation that could allow air bypass around the filter frame.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNominal Size\u003c\/strong\u003e: 18 x 18 x 1 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActual Size\u003c\/strong\u003e: 17.5 x 17.5 x 0.75 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMERV Rating\u003c\/strong\u003e: MERV 11\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity per Pack\u003c\/strong\u003e: 10\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: FILTER KING\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: AF18x18x1-M11\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Filter King","offers":[{"title":"Default Title","offer_id":51716800905522,"sku":"AF18x18x1-M11","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/7df9ed37da7ecfe5fb32a8b7753bfd10_841ca3fb-c296-495d-9992-ab0dbea84f95.jpg?v=1788532038","url":"https:\/\/voomisupply.com\/products\/filter-king-af18x18x1-m11-merv-11-air-filter-18x18x1","provider":"Voomi Supply","version":"1.0","type":"link"}