{"product_id":"koch-filter-p421825-pleated-air-filter-18x25x2","title":"Koch Filter P421825 Pleated Air Filter 18x25x2","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe KOCH FILTER P421825 is a pleated air filter designed for residential and light commercial HVAC systems requiring standard 2-inch depth filtration. Measuring 18 inches by 25 inches by 2 inches, it uses a pleated media construction to increase surface area, which supports effective dust and particulate capture while maintaining adequate airflow through the system. This filter is installed by HVAC technicians and experienced service professionals performing routine filter replacement on forced-air heating and cooling equipment.\u003c\/p\u003e\n\u003cp\u003eThe P421825 is suited for standard forced-air HVAC applications where a 2-inch pleated filter is specified. Typical install scenarios include residential gas furnaces, air handlers, and central cooling systems equipped with a filter rack or media cabinet sized for an 18-inch by 25-inch by 2-inch filter. It provides a straightforward drop-in replacement during scheduled preventive maintenance visits.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003ePleated media design increases filter surface area for improved particulate capture\u003c\/li\u003e\n  \u003cli\u003eStandard 2-inch depth fits common residential and light commercial filter housings\u003c\/li\u003e\n  \u003cli\u003e18 x 25 x 2 inch nominal size for broad compatibility with standard filter racks\u003c\/li\u003e\n  \u003cli\u003eSupports airflow balance in forced-air heating and cooling systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement pleated air filter for residential and light commercial forced-air HVAC systems requiring an 18-inch by 25-inch by 2-inch filter.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eFilter replacement is performed by licensed HVAC technicians or qualified service personnel. Always shut down the air handler or furnace at the system disconnect or thermostat before removing the existing filter. Note the airflow direction arrow printed on the filter frame and ensure the replacement is installed with the arrow pointing toward the blower. Dispose of the used filter in accordance with local waste regulations.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFilter Length\u003c\/strong\u003e: 25 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFilter Width\u003c\/strong\u003e: 18 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFilter Depth\u003c\/strong\u003e: 2 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFilter Type\u003c\/strong\u003e: Pleated\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\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: P421825\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KOCH FILTER","offers":[{"title":"Default Title","offer_id":51343129477426,"sku":"P421825","price":18.51,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/310555285.jpg?v=1782017529","url":"https:\/\/voomisupply.com\/products\/koch-filter-p421825-pleated-air-filter-18x25x2","provider":"Voomi Supply","version":"1.0","type":"link"}