{"product_id":"schaefer-brush-43226-flue-brush-2-3-4-in-dia-7-1-2-in-oal","title":"Schaefer Brush 43226 Flue Brush 2-3\/4 in Dia 7-1\/2 in Oal","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SCHAEFER BRUSH 43226 is a double stem, single spiral flue brush designed for cleaning flue passages, heat exchanger flues, and combustion venting in residential and light commercial heating systems. The brush measures 2-3\/4 inches in diameter with a 4-1\/2 inch brush length and a 7-1\/2 inch overall length. Tempered steel wire construction provides durable, effective scrubbing action against carbon deposits, soot, and scale inside flue tubes and venting passages. A 1\/4 inch NPSM male connection allows attachment to standard extension rods for deeper reach into flue runs.\u003c\/p\u003e\n\u003cp\u003eThis flue brush is suited for use during routine maintenance on gas and oil-fired furnaces, boilers, and water heaters where flue tube cleaning is required. HVAC technicians and heating service professionals use this type of brush during annual combustion system inspections, heat exchanger cleanings, and pre-season tune-ups. The double stem design provides added rigidity and consistent spiral contact along the full brush length, making it effective in straight-run flue tubes.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eDouble stem, single spiral configuration for consistent flue wall contact\u003c\/li\u003e\n  \u003cli\u003eTempered steel wire bristles for effective removal of soot, scale, and carbon deposits\u003c\/li\u003e\n  \u003cli\u003e2-3\/4 inch brush diameter suitable for matching flue tube openings\u003c\/li\u003e\n  \u003cli\u003e4-1\/2 inch brush length with 7-1\/2 inch overall length\u003c\/li\u003e\n  \u003cli\u003e1\/4 inch NPSM male connection for use with standard extension rod systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style cleaning tool for flue tubes and venting passages in residential and light commercial gas or oil-fired heating equipment requiring a 2-3\/4 inch brush diameter.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and use should be performed by a qualified HVAC technician or heating service professional. Always shut down the heating system and allow flue passages to cool completely before inserting any cleaning brush. Verify the brush diameter matches the flue tube inner diameter before use to avoid damage to flue walls. Attach to compatible extension rods as needed and follow applicable codes and manufacturer service guidelines.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProduct Type\u003c\/strong\u003e: Double Stem Single Spiral Flue Brush\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrush Diameter\u003c\/strong\u003e: 2-3\/4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrush Length\u003c\/strong\u003e: 4-1\/2 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 7-1\/2 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBristle Material\u003c\/strong\u003e: Tempered Steel Wire\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\u003eWeight\u003c\/strong\u003e: 0.44 pounds\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: SCHAEFER BRUSH\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 43226\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SCHAEFER BRUSH","offers":[{"title":"Default Title","offer_id":51540342047026,"sku":"43226","price":21.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/0787331e2bf7c39316b04bdaded5ea5b.jpg?v=1785852741","url":"https:\/\/voomisupply.com\/products\/schaefer-brush-43226-flue-brush-2-3-4-in-dia-7-1-2-in-oal","provider":"Voomi Supply","version":"1.0","type":"link"}