{"product_id":"koch-18x20x1-merv-13-air-filter-12-pack","title":"Koch 18 x 20 x 1 MERV 13 Pleated Air Filter - 12 Pack","description":"\u003cdiv class=\"hfs-product-description\"\u003e\n\u003cp\u003eThis Koch Filter pleated air filter is a MERV 13 replacement for furnaces, heat pumps and air handlers. It fits any system that takes an \u003cstrong\u003e18 x 20 x 1\u003c\/strong\u003e filter (18x20x1). 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\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\u003eKoch Part Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e102-101-015\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 1\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 13\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 13 Captures\u003c\/h3\u003e\n\u003cp\u003eMERV 13 captures at least 50% of particles in the 0.3–1 micron range, 85% in the 1–3 micron range and 90% in the 3–10 micron range under ASHRAE 52.2. Higher efficiency can mean more airflow resistance, so if your system is older or already struggles for airflow, compare the resistance figures above with your equipment manual, or consider MERV 11.\u003c\/p\u003e\n\u003ch3\u003eOther Koch Options in 18 x 20 x 1\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/koch-air-filter-18x20x1-merv-8-pleated-air-filter-12-pack\"\u003eKoch Multi-Pleat XL8 18 x 20 x 1 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\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":67287852122353,"sku":"KCH-102101015-CS12","price":421.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2657\/5818\/files\/Koch_Filter_Twelve.jpg?v=1765124469","url":"https:\/\/hepafiltersales.com\/products\/koch-18x20x1-merv-13-air-filter-12-pack","provider":"HEPAFilterSales.com","version":"1.0","type":"link"}