{"product_id":"koch-multi-pleat-xl11-18x20x2-merv-11-air-filter-12-pack","title":"Koch Multi-Pleat XL11 18 x 20 x 2 MERV 11 Pleated Air Filter - 12 Pack","description":"\u003cdiv class=\"hfs-product-description\"\u003e\n\u003cp\u003eThe Koch Multi-Pleat XL11 is a MERV 11 extended-surface pleated filter for gas and oil furnaces, heat pumps and AC air handlers, one step up in efficiency from a standard MERV 8 filter. It fits any system that takes an \u003cstrong\u003e18 x 20 x 2\u003c\/strong\u003e filter (18x20x2). This case contains \u003cstrong\u003e12 filters\u003c\/strong\u003e. At a quarterly change, that is three years of filters for one system, or one year for three systems.\u003c\/p\u003e\n\u003cp\u003eMulti-Pleat XL11 uses 100% mechanical filter media rated MERV 11, so its efficiency does not depend on an electrostatic charge that can fade over time. A galvanized expanded-metal support grid is laminated to the media, the pleats are bonded to the frame to prevent air bypass, and the double-wall, moisture-resistant beverage-board frame with reinforced corners stays rigid in humid conditions.\u003c\/p\u003e\n\u003ch3\u003eIs This the Right Size?\u003c\/h3\u003e\n\u003cp\u003eAir filters are sold by \u003cstrong\u003enominal size\u003c\/strong\u003e, the rounded size printed on the frame of your current filter. The filter itself is made slightly smaller so it slides into the filter slot — typically about 1\/2\" under nominal on length and width, and 3\/4\" deep for a 1\" filter. Match the nominal size printed on your old filter, not a tape measurement of the slot.\u003c\/p\u003e\n\u003cp\u003eNot sure? \u003ca href=\"\/pages\/contact-us\"\u003eSend us a photo of the label on your current filter\u003c\/a\u003e and we will confirm the match before you order.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eKoch Filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSeries\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMulti-Pleat XL11\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eKoch Part Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e102-092-015\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNominal Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e18 x 20 x 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMERV Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMERV 11 (ASHRAE 52.2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDust Spot Efficiency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e45% initial | 55–60% average (ASHRAE 52.1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMedia\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100% mechanical media\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMedia Support\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGalvanized expanded metal, laminated to media\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFrame\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDouble-wall moisture-resistant beverage board, reinforced corners\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eQuantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12 filters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eWhat MERV 11 Captures\u003c\/h3\u003e\n\u003cp\u003eMERV 11 captures at least 65% of particles in the 1–3 micron range and at least 85% in the 3–10 micron range under ASHRAE 52.2. That adds finer dust and pet dander to everything a MERV 8 filter stops, with only a modest increase in airflow resistance.\u003c\/p\u003e\n\u003ch3\u003eOther Koch Options in 18 x 20 x 2\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/koch-multi-pleat-xl8-18x20x2-merv-8-air-filter-12-pack\"\u003eKoch Multi-Pleat XL8 18 x 20 x 2 MERV 8 Pleated Air Filter - 12 Pack\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eReplacement Schedule\u003c\/h3\u003e\n\u003cp\u003eCheck the filter monthly and replace it at least every three months — sooner in homes with pets, during renovation work, or whenever it looks loaded with dust. Install it with the airflow arrow on the frame pointing toward the blower.\u003c\/p\u003e\n\u003cp\u003eIn commercial systems, change the filter when pressure drop across it reaches 1.0\" w.g., Koch's recommended final resistance for this filter.\u003c\/p\u003e\n\u003cp\u003eShop all \u003ca href=\"\/collections\/koch\"\u003eKoch Filter air filters\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Koch Filter","offers":[{"title":"Default Title","offer_id":67287856808177,"sku":"KCH-102092015-CS12","price":255.36,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2657\/5818\/files\/Koch_2in_Filters_12Pk.webp?v=1773584846","url":"https:\/\/hepafiltersales.com\/products\/koch-multi-pleat-xl11-18x20x2-merv-11-air-filter-12-pack","provider":"HEPAFilterSales.com","version":"1.0","type":"link"}