{"title":"Lennox Replacement Air Filters","description":"","products":[{"product_id":"lennox-mwca012s4-ductless-mini-split-filter-2-pack","title":"Lennox MWCA012S4 \/ MWCB012S4 \/ MWHA012S4 \/ MWHB012S4 Ductless Mini Split Filter - 2 Pack","description":"\u003cp\u003eOEM Lennox Replacement filters guaranteed to fit Lennox MWCA12, MWCB12, MWHA12, and MWHB12 Series Indoor wall-mounted ductless indoor units. Clean filters ensure your system runs efficiently and your indoor air stays fresh—whether you're cooling a bedroom, office, or mixed-use space.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThis kit is guaranteed to fit the following Lennox indoor unit models:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMWCA012S4-1L, MWCA012S4-1P, MWCB012S4-1L, MWCB012S4-1P, MWCB012S4-2L, MWCB012S4-2P, MWHA012S4-1L, MWHA012S4-1P, MWHB012S4-1L, MWHB012S4-1P, MWHB012S4-2L, and MWHB012S4-2P .\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLarge Washable Screen Filter Dimensions:\u003c\/strong\u003e 11-13\/16\" x 11-5\/16\"\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eMaintenance \u0026amp; Care\u003c\/h2\u003e\n\u003cp\u003eClean the screen filters every two weeks with a vacuum using a soft-bristle brush attachment. In more demanding environments—like homes with pets, indoor smokers, or garages—filters can also be gently washed with warm, soapy water. Let the filters dry completely \u003cem\u003eout of direct sunlight\u003c\/em\u003e before reinstalling.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e⚠️ Important:\u003c\/strong\u003e Never operate your unit without the filters installed. Consider keeping a second set to stay on schedule with cleanings.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eReplacement Guidance\u003c\/h2\u003e\n\u003cp\u003eAlthough washable and reusable, screen filters lose efficiency over time. For optimal airflow and indoor air quality, replace them every \u003cstrong\u003e12 to 24 months\u003c\/strong\u003e, depending on usage and care.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eOptional Activated Carbon Freshness Filter\u003c\/h2\u003e\n\u003cp\u003eUpgrade your Indoor Air with optional freshness filter that fit into the pre-molded holder inside your screen filter. These filters contains activated carbon media to help absorb odors and reduce VOCs from tobacco, pets, and cooking, providing a noticeable upgrade to your system’s air quality performance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFilter Dimensions:\u003c\/strong\u003e 8.4\" x 2\"\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaintenance \u0026amp; Care:\u003c\/strong\u003e Do not wash. Vacuum every two weeks using a soft-bristle brush. \u003cstrong\u003eReplace every 6 months\u003c\/strong\u003e to maintain odor absorption and filtration performance.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":47879704543473,"sku":"DFS-CAR-LNX-SF522-PK2","price":77.51,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2657\/5818\/files\/8920220303601_46327771791601.webp?v=1750021123"},{"product_id":"lennox-ceiling-cassette-mini-split-replacement-filter-21-1-4-x-22-1-4","title":"Lennox Ceiling Cassette Mini Split Replacement Filter — 21-1\/4\" x 22-1\/4\"","description":"\u003cp\u003eKeep your Lennox ceiling cassette mini split running clean and efficient with this direct-replacement air filter. Designed to fit select Lennox M33A and M33B series cassette indoor units, this filter maintains proper airflow, protects internal components, and supports air quality performance between service intervals.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFilter Dimensions\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eLength\u003c\/td\u003e\n      \u003ctd\u003e21-1\/4\"\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eWidth\u003c\/td\u003e\n      \u003ctd\u003e22-1\/4\"\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003e\u003cstrong\u003eCompatible Lennox Ceiling Cassette Indoor Unit Models\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eM33A024S4-1P\u003c\/li\u003e\n  \u003cli\u003eM33A024S4-2P\u003c\/li\u003e\n  \u003cli\u003eM33A036S4-1P\u003c\/li\u003e\n  \u003cli\u003eM33A048S4-1P\u003c\/li\u003e\n  \u003cli\u003eM33B048S4-1P\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eImportant Notes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eVerify filter dimensions against your existing filter before ordering — do not rely on model number alone\u003c\/li\u003e\n  \u003cli\u003eSold as a single filter\u003c\/li\u003e\n  \u003cli\u003eManufacturer warranty applies where applicable — see manufacturer documentation for details\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":48110702297329,"sku":"DFS-CAR-SF542-LNX","price":54.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2657\/5818\/files\/DFS-SF542.avif?v=1777477064"},{"product_id":"lennox-mwma009s4-mwma012s4-mwmb009s4-ductless-mini-split-filter-2-pack","title":"Lennox MWMA009S4 \/ MWMA012S4 \/ MWMB009S4 Ductless Mini Split Filter - 2 Pack","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eThis replacement filter 2-pack is designed for select Lennox MWMA \u0026amp; MWMB series mini split wall-mounted indoor units. Clean filters are essential to keeping your system running efficiently and helping maintain healthy indoor air quality in your home or workspace.\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003eGuaranteed to fit the following indoor unit models:\u003c\/strong\u003e MWMA009S4-1L, MWMA009S4-1P, MWMA009S4-2P, MWMA009S4-3P, MWMA012S4-1L, MWMA012S4-2P, MWMA012S4-2P, MWMA012S4-3P, MWMB009S4-1L, MWMB009S4-2L, MWMB012S4-1L, and MWMB012S4-2L.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFilter Dimensions:\u003c\/strong\u003e 12-13\/16\" x 13-1\/8\"\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eMaintenance \u0026amp; Care\u003c\/h2\u003e\n\u003cp\u003eVacuum filters every two weeks using a soft-bristle brush attachment. For heavy-use environments—homes with pets, indoor smoking, or high dust—you may gently wash filters with mild soapy water. Dry fully in the shade before reinstalling.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e⚠️ Note:\u003c\/strong\u003e Never run your system without the filters installed. A second set helps ensure uninterrupted operation during cleaning cycles.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eReplacement Guidance\u003c\/h2\u003e\n\u003cp\u003eEven though washable, filters lose efficiency over time. Replace every \u003cstrong\u003e12 to 24 months\u003c\/strong\u003e depending on use and environment.\u003c\/p\u003e\n\u003cp\u003eTwo (2) filters ship with this order.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":48371328352497,"sku":"DFS-LNX-SF466-PK2-MWMB","price":56.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2657\/5818\/files\/6539931418798.webp?v=1749395565"}],"url":"https:\/\/hepafiltersales.com\/collections\/lennox-replacement-air-filters.oembed","provider":"HEPAFilterSales.com","version":"1.0","type":"link"}