{"product_id":"southwark-metal-gffb61425-furnace-filter-base-6x14x25-in","title":"Southwark Metal GFFB61425 Furnace Filter Base 6x14x25 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SOUTHWARK METAL GFFB61425 is a flanged furnace filter base designed to house standard 6-inch x 14-inch x 25-inch filters in forced-air heating and cooling systems. Fabricated from 22-gauge galvanized steel, this filter base provides a rigid, corrosion-resistant enclosure that maintains proper airflow alignment between the duct and the air handler or furnace cabinet. The flanged design allows for secure connection to adjoining ductwork or equipment, reducing bypass air and keeping filtration effective. HVAC technicians install this base as part of a complete air distribution system where a dedicated filter housing is needed upstream of the blower or coil section.\u003c\/p\u003e\n\u003cp\u003eThis filter base is suited for residential and light commercial gas furnace installations where fan and coil units require a fixed, non-adjustable filter housing. It accepts a 14-inch x 25-inch x 6-inch filter and is built to integrate into sheet metal duct systems. The unit is not insulated, making it appropriate for interior installations where condensation on duct surfaces is not a concern. Installers working on new construction or replacement air handling setups will find this base compatible with standard flanged duct connections common in forced-air systems.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e22-gauge galvanized steel construction for corrosion resistance and structural rigidity\u003c\/li\u003e\n  \u003cli\u003eFlanged design for secure duct and equipment connections with minimal air bypass\u003c\/li\u003e\n  \u003cli\u003eAccepts 14-inch x 25-inch x 6-inch filters for high-capacity filtration\u003c\/li\u003e\n  \u003cli\u003eFixed, non-adjustable configuration for consistent fitment in standard installations\u003c\/li\u003e\n  \u003cli\u003eNot insulated, suited for conditioned-space or interior duct applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or new-installation filter base for residential and light commercial gas furnace and fan coil unit systems requiring a 14-inch x 25-inch x 6-inch flanged filter housing.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified HVAC technician. Power down the furnace or air handler at the disconnect and thermostat before beginning any duct or cabinet work. Secure the flanged connections to adjoining ductwork using sheet metal screws and seal all joints with UL-listed foil tape or mastic per local mechanical code requirements. Confirm filter direction and airflow arrow orientation before closing up the cabinet.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFilter Size\u003c\/strong\u003e: 14 inches x 25 inches x 6 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeight\u003c\/strong\u003e: 6 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 14.25 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 28.625 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 14 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Galvanized Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGauge\u003c\/strong\u003e: 22 GA\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlanged\u003c\/strong\u003e: Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAdjustable\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsulated\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUPC\u003c\/strong\u003e: 099273686455\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: SOUTHWARK METAL\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: GFFB61425\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SOUTHWARK METAL","offers":[{"title":"Default Title","offer_id":51524716429618,"sku":"GFFB61425","price":100.91,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/de26e20dfc88df0c22439e3fe8d906c9.webp?v=1785456207","url":"https:\/\/voomisupply.com\/products\/southwark-metal-gffb61425-furnace-filter-base-6x14x25-in","provider":"Voomi Supply","version":"1.0","type":"link"}