{"product_id":"schaefer-brush-43395-spiral-tube-brush-13-in-7-5-in-oal-npt","title":"Schaefer Brush 43395 Spiral Tube Brush 13 in 7.5 in Oal Npt","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SCHAEFER BRUSH 43395 is a double stem spiral tube brush built for cleaning the interior of tubes, pipes, and cylindrical passages in HVAC, plumbing, and industrial maintenance applications. The brush head measures 13 inches in diameter with a 4.5-inch brush length, and the overall assembly reaches 7.5 inches. The bristles are made from tempered steel wire, making the tool effective for removing scale, debris, and fouling from metal tube surfaces. A 1\/4-inch male NPT connection allows the brush to thread directly onto standard cleaning rods or extension handles. HVAC technicians and plumbers are the primary installers and users of this tool.\u003c\/p\u003e\n\u003cp\u003eThis tube brush is suited for residential and commercial maintenance tasks involving heat exchanger tubes, condenser tubes, boiler flues, and similar cylindrical passages that accumulate scale or debris over time. The 13-inch head diameter addresses larger-bore tubes commonly found in commercial HVAC and boiler systems. The double stem spiral design holds the tempered steel wire fill firmly in place during aggressive scrubbing strokes, reducing bristle loss and extending service life compared to single-stem designs.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e13-inch brush diameter for large-bore tube cleaning applications\u003c\/li\u003e\n  \u003cli\u003e4.5-inch brush length provides extended scrubbing surface in a single pass\u003c\/li\u003e\n  \u003cli\u003eTempered steel wire fill for effective scale and fouling removal from metal surfaces\u003c\/li\u003e\n  \u003cli\u003eDouble stem spiral construction retains bristles under heavy scrubbing loads\u003c\/li\u003e\n  \u003cli\u003e1\/4-inch male NPT connection threads onto standard cleaning rods and extensions\u003c\/li\u003e\n  \u003cli\u003eCompact 7.5-inch overall length for use in confined access points\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with standard 1\/4-inch NPT cleaning rod systems; suitable for tube and pipe cleaning applications requiring a 13-inch diameter brush head with a tempered steel wire fill.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis brush is installed by threading the 1\/4-inch male NPT fitting onto a compatible cleaning rod or extension handle — ensure the connection is fully engaged before applying rotational force. Shut down and isolate any system being serviced before inserting the brush into live tubes or flue passages. Wear appropriate personal protective equipment, including eye protection and gloves, when working with wire brushes on scale-laden surfaces. Inspect the bristle fill for wear or damage before each use and replace the brush if wire loss is evident.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrush Diameter\u003c\/strong\u003e: 13 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\u003eBrush Length\u003c\/strong\u003e: 4.5 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: NPT\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: 1.44 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: 43395\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SCHAEFER BRUSH","offers":[{"title":"Default Title","offer_id":51542460956978,"sku":"43395","price":58.46,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/4bf2e764a03bf7d8d71051494da98e7d.jpg?v=1785901038","url":"https:\/\/voomisupply.com\/products\/schaefer-brush-43395-spiral-tube-brush-13-in-7-5-in-oal-npt","provider":"Voomi Supply","version":"1.0","type":"link"}