{"product_id":"schaefer-brush-43228-flue-brush-3-in-dia-7-5-in-oal","title":"Schaefer Brush 43228 Flue Brush 3 in Dia 7.5 in Oal","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SCHAEFER BRUSH 43228 is a double stem, single spiral flue brush designed for cleaning flue passages, heat exchanger tubes, and combustion venting components in residential and light commercial heating systems. The brush features a 3-inch diameter tempered steel wire spiral head and a brush length of 4.5 inches, with a total overall length of 7.5 inches. The 1\/4-inch NPSM male connection allows attachment to standard extension rods, making it suitable for reaching into flue passages of varying depths. Tempered steel wire construction provides durability for repeated service use in moderate debris and soot conditions.\u003c\/p\u003e\u003cp\u003eThis flue brush is used by HVAC technicians and chimney service professionals during routine maintenance and annual tune-ups of gas, oil, or solid-fuel heating appliances. The 3-inch diameter makes it appropriate for small-diameter flue tubes and heat exchanger passages commonly found in residential boilers, water heaters, and furnaces. The NPSM male threaded connection is compatible with standard brush extension rod systems, enabling technicians to clean passages without disassembly where rod access is available.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e3-inch diameter tempered steel wire spiral brush for flue and heat exchanger tube cleaning\u003c\/li\u003e\n\u003cli\u003e4.5-inch brush length provides effective scrubbing coverage in straight flue passages\u003c\/li\u003e\n\u003cli\u003e7.5-inch overall length accommodates direct use or extension rod attachment\u003c\/li\u003e\n\u003cli\u003e1\/4-inch NPSM male connection for use with standard extension rod systems\u003c\/li\u003e\n\u003cli\u003eDouble stem construction adds rigidity and supports consistent spiral contact with tube walls\u003c\/li\u003e\n\u003cli\u003eTempered steel wire material resists deformation during repeated service use\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement and standard service brush for small-diameter flue tubes and heat exchanger passages requiring a 3-inch brush diameter with a 1\/4-inch NPSM male threaded connection.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and use of this flue brush should be performed by a qualified HVAC technician or licensed chimney sweep. Power down or shut off the appliance and allow all components to cool fully before beginning any flue or heat exchanger cleaning procedure. Insert the brush manually or attach to compatible extension rods before feeding into the flue passage; do not force the brush through passages that are significantly smaller than the brush diameter. Follow all applicable local codes and manufacturer service procedures when servicing venting and combustion components.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrush Diameter\u003c\/strong\u003e: 3 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrush Length\u003c\/strong\u003e: 4.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 7.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnection Type\u003c\/strong\u003e: NPSM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnection Size\u003c\/strong\u003e: 1\/4 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnection Gender\u003c\/strong\u003e: Male\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrush Material\u003c\/strong\u003e: Tempered Steel Wire\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.46 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: SCHAEFER BRUSH\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 43228\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SCHAEFER BRUSH","offers":[{"title":"Default Title","offer_id":51708741353778,"sku":"43228","price":22.32,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/450ce0822d51a1541f0e9261e5835aad.jpg?v=1788448120","url":"https:\/\/voomisupply.com\/products\/schaefer-brush-43228-flue-brush-3-in-dia-7-5-in-oal","provider":"Voomi Supply","version":"1.0","type":"link"}