{"product_id":"koch-filter-p441824-pleated-air-filter-18x24x4","title":"Koch Filter P441824 Pleated Air Filter 18x24x4","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe KOCH FILTER P441824 is a pleated air filter built for HVAC systems that require large-format, deep-media filtration. The 4-inch depth provides greater media surface area compared to standard 1-inch and 2-inch filters, supporting enhanced particulate capture and extended service intervals. The 18 x 24 x 4 inch nominal size fits air handlers, rooftop units, and forced-air furnaces where deeper filter housings are specified. Licensed HVAC technicians and mechanical contractors install this type of filter in both residential and light commercial applications.\u003c\/p\u003e\u003cp\u003eThis filter is suited for systems with 4-inch filter tracks or dedicated deep-media filter housings. The larger depth is commonly found in high-efficiency residential air handlers, commercial split systems, and dedicated filtration cabinets installed in-line with return-air ductwork. Deep-media pleated filters at this size are a standard upgrade path when longer change intervals are a service priority or when increased particle-holding capacity is required for the application.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e4-inch depth increases media surface area for improved particle capture capacity\u003c\/li\u003e\n\u003cli\u003ePleated media construction supports efficient airflow while maintaining filtration performance\u003c\/li\u003e\n\u003cli\u003eLarge-format 18 x 24 x 4 inch size fits commercial and residential deep-media housings\u003c\/li\u003e\n\u003cli\u003eExtended service life reduces filter change frequency compared to standard 1-inch filters\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement for HVAC systems and air handlers that accept a 4-inch deep pleated filter in an 18 x 24 inch nominal frame size.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a licensed HVAC technician or qualified mechanical contractor. Always shut down the air handler or furnace at the disconnect or breaker before accessing the filter compartment. Verify the airflow direction arrow on the filter frame aligns with the direction of air movement toward the blower. Check the filter housing for an airtight seal after installation to prevent bypass around the filter media.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilter Type\u003c\/strong\u003e: Pleated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNominal Length\u003c\/strong\u003e: 24 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNominal Width\u003c\/strong\u003e: 18 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNominal Depth\u003c\/strong\u003e: 4 inches\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: KOCH FILTER\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: P441824\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KOCH FILTER","offers":[{"title":"Default Title","offer_id":51345216012594,"sku":"P441824","price":22.71,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/310554679.jpg?v=1782051776","url":"https:\/\/voomisupply.com\/products\/koch-filter-p441824-pleated-air-filter-18x24x4","provider":"Voomi Supply","version":"1.0","type":"link"}