{"product_id":"koch-filter-p411217-pleated-air-filter-11-75x17-75x1-in","title":"Koch Filter P411217 Pleated Air Filter 11.75x17.75x1 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe KOCH FILTER P411217 is a pleated air filter built for residential and light commercial HVAC systems that require precise dimensional fit. Measuring 11.75 inches by 17.75 inches by 1 inch, it installs in standard filter slots without trimming or modification. The pleated media construction increases the effective surface area compared to flat fiberglass panels, which improves dust holding capacity and extends service intervals. Licensed HVAC technicians and facility maintenance personnel install this filter during routine seasonal servicing or whenever the existing filter is loaded to capacity.\u003c\/p\u003e\u003cp\u003eThis filter suits forced-air heating and cooling systems that accept a nominal 12 x 18 x 1 inch filter. It fits in filter grilles, air handlers, and furnace cabinets designed for that nominal size. The pleated design supports proper static pressure balance across the air handler, helping the blower maintain rated airflow through the system. It is appropriate for residential split systems, package units, and light commercial air handlers where a 1-inch depth filter rack is installed.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003ePleated media construction increases dust holding capacity over flat-panel filters\u003c\/li\u003e\n\u003cli\u003eExact nominal 12 x 18 x 1 inch size fits standard residential and light commercial filter racks\u003c\/li\u003e\n\u003cli\u003eActual dimensions of 11.75 x 17.75 x 1 inch prevent bypass gaps around the filter frame\u003c\/li\u003e\n\u003cli\u003eRigid frame maintains shape during installation and throughout the service interval\u003c\/li\u003e\n\u003cli\u003eDrop-in replacement requiring no cutting or modification\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement pleated air filter for residential and light commercial forced-air HVAC systems accepting a nominal 12 x 18 x 1 inch filter slot.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eA licensed HVAC technician or qualified maintenance professional should shut down the air handler or furnace at the thermostat and disconnect power at the disconnect switch before replacing the filter. Slide the old filter out and note the airflow direction arrow printed on the frame, then insert the new P411217 with the arrow pointing toward the blower. Filters should be inspected regularly and replaced when visibly loaded or per the system manufacturer schedule. Follow all applicable local mechanical codes when servicing air-handling equipment.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilter Length\u003c\/strong\u003e: 17.75 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilter Width\u003c\/strong\u003e: 11.75 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilter Depth\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNominal Size\u003c\/strong\u003e: 12 x 18 x 1 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMedia Type\u003c\/strong\u003e: Pleated\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: P411217\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KOCH FILTER","offers":[{"title":"Default Title","offer_id":51346157666610,"sku":"P411217","price":22.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/310554670.jpg?v=1782072476","url":"https:\/\/voomisupply.com\/products\/koch-filter-p411217-pleated-air-filter-11-75x17-75x1-in","provider":"Voomi Supply","version":"1.0","type":"link"}