{"product_id":"mill-rose-4865-horsehair-tube-brush-3-4-in-x-9-in-boiler","title":"Mill-rose 4865 Horsehair Tube Brush 3\/4 in X 9 in Boiler","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe MILL-ROSE 4865 is a horsehair tube brush designed for cleaning boiler tubes, burner ports, radiator passages, flue liners, vent pipes, and nozzle openings. Built around a 3\/4 inch diameter brush head on a 9 inch overall length, this brush reaches into tight passages where buildup restricts airflow and combustion efficiency. The stem measures 0.13 inches in diameter, keeping the profile narrow enough to navigate small-bore tubing. HVAC technicians and plumbers use it during routine maintenance and seasonal service to clear soot, scale, and debris from heat exchanger components and venting systems.\u003c\/p\u003e\n\u003cp\u003eThis brush is suited for residential and light commercial applications. It works across a range of cleaning tasks including boiler tube maintenance, radiator core cleaning, flue and vent passage clearing, and nozzle service. The horsehair bristles are firm enough to dislodge debris while remaining gentle enough to avoid damaging tube walls or delicate vent surfaces. Each brush carries an individual UPC label on the handle for inventory tracking and jobsite organization.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e3\/4 inch brush diameter fits standard boiler tubes and vent passages\u003c\/li\u003e\n  \u003cli\u003e9 inch overall length provides reach into confined heat exchanger sections\u003c\/li\u003e\n  \u003cli\u003eHorsehair bristles suitable for soot, scale, and light debris removal\u003c\/li\u003e\n  \u003cli\u003e0.13 inch stem diameter allows entry into narrow-bore openings\u003c\/li\u003e\n  \u003cli\u003eIndividual UPC label on handle supports inventory and identification\u003c\/li\u003e\n  \u003cli\u003eApplicable across boiler, burner, radiator, flue, vent, and nozzle cleaning tasks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in boiler tube cleaning, burner port service, radiator passage maintenance, flue and vent line clearing, and nozzle cleaning applications common in residential and light commercial heating systems.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eShut down and allow the boiler or heating system to cool completely before beginning any tube or flue cleaning. Licensed HVAC technicians and plumbers should follow local codes and manufacturer service guidelines when accessing combustion chambers, heat exchanger tubes, and venting components. Inspect the brush bristles before use and replace the brush if the head is deformed or bristles are significantly worn, as a compromised brush will not clean effectively.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrush Type\u003c\/strong\u003e: Tube Brush\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrush Diameter\u003c\/strong\u003e: 3\/4 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 9 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStem Diameter\u003c\/strong\u003e: 0.13 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBristle Material\u003c\/strong\u003e: Horse Hair\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Boiler, Burner, Radiator, Flue, Vent, Nozzle\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: MILL-ROSE\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 4865\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MILL-ROSE","offers":[{"title":"Default Title","offer_id":51467467850034,"sku":"4865","price":14.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/313946338.jpg?v=1783905066","url":"https:\/\/voomisupply.com\/products\/mill-rose-4865-horsehair-tube-brush-3-4-in-x-9-in-boiler","provider":"Voomi Supply","version":"1.0","type":"link"}