{"product_id":"filter-king-af17x21x1a-m13-merv-13-air-filter-17x21x1","title":"Filter King AF17x21x1A-M13 Merv 13 Air Filter 17x21x1","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe FILTER KING AF17x21x1A-M13 is a MERV 13 pleated HVAC air filter designed for residential and light commercial forced-air systems. With a nominal size of 17x21x1 inches and an actual size of 17 x 21 x 0.75 inches, this filter fits standard 1-inch filter slots. MERV 13 filtration captures fine particulates including dust, pollen, mold spores, pet dander, and fine smoke particles. This rating meets the threshold commonly specified for improved indoor air quality in residential HVAC applications. HVAC technicians and facility maintenance personnel install this filter as a routine service item during preventive maintenance visits.\u003c\/p\u003e\u003cp\u003eThis filter is suited for residential and light commercial forced-air systems using standard 1-inch filter housings, return air grilles, or air handler filter racks. The 17x21x1 nominal size is a common fit across a wide range of residential air handlers and furnace filter slots. Sold in a quantity of 10 per order, making it practical for technicians servicing multiple units or managing filter change schedules at a single location.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eMERV 13 rating captures fine particulates including smoke, fine dust, and allergens\u003c\/li\u003e\n\u003cli\u003ePleated media design increases surface area for improved airflow and particle capture\u003c\/li\u003e\n\u003cli\u003eNominal size 17x21x1 inches fits standard 1-inch residential filter openings\u003c\/li\u003e\n\u003cli\u003eActual size 17 x 21 x 0.75 inches for precise fitment reference\u003c\/li\u003e\n\u003cli\u003eSold in a 10-pack for efficient stocking and multi-unit service calls\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement for standard 1-inch residential and light commercial HVAC air filter applications using a 17x21x1 nominal filter slot.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by HVAC technicians or qualified maintenance personnel. Always power down the air handler or furnace at the disconnect or thermostat before replacing the filter. Confirm airflow direction marked on the filter frame matches the system airflow before securing the filter in the housing. MERV 13 filters can restrict airflow in systems not designed for high-efficiency media — verify the system fan can maintain adequate external static pressure at this filtration level before specifying on a new install.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNominal Size\u003c\/strong\u003e: 17 x 21 x 1 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActual Size\u003c\/strong\u003e: 17 x 21 x 0.75 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMERV Rating\u003c\/strong\u003e: 13\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilter Thickness\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilter Media\u003c\/strong\u003e: Pleated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity per Order\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: AF17x21x1A-M13\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Filter King","offers":[{"title":"Default Title","offer_id":51716825612594,"sku":"AF17x21x1A-M13","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/ded7b7b395536dd1b22964e7663d2b19_17e2caad-45f4-40a7-a9b7-7437d139b95a.jpg?v=1788532551","url":"https:\/\/voomisupply.com\/products\/filter-king-af17x21x1a-m13-merv-13-air-filter-17x21x1","provider":"Voomi Supply","version":"1.0","type":"link"}