{"product_id":"schaefer-brush-43756-spiral-tube-brush-3-in-nylon","title":"Schaefer Brush 43756 Spiral Tube Brush 3 in Nylon","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SCHAEFER BRUSH 43756 is a single stem spiral tube brush designed for cleaning the interior of tubes, pipes, and cylinders. The brush features nylon bristles mounted on a spiral stem configuration, making it well suited for scrubbing debris, scale, and buildup from bore surfaces without scratching softer materials. At 3 inches in diameter with a 5-inch brush length and a 7.25-inch overall length, this tool fits comfortably into standard tube and pipe cleaning applications. The 1\/4-inch male NPSM threaded connection allows it to attach to compatible extension handles or drive tools. It is a standard tool for HVAC, plumbing, and maintenance technicians who perform routine tube and coil cleaning tasks.\u003c\/p\u003e\u003cp\u003eThis tube brush is applicable to residential and light commercial service work where internal bore cleaning is required. Common use cases include cleaning heat exchanger tubes, condenser tube bundles, drain lines, and small-diameter pipe sections. The nylon bristle construction is appropriate for applications where metal bristles would risk damaging coatings or softer tube wall materials. The threaded male NPSM connection makes it compatible with standard extension handles for reaching deeper into tube runs.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e3-inch brush diameter for cleaning standard tube and pipe bores\u003c\/li\u003e\n\u003cli\u003eNylon bristles resist corrosion and are safe for coated or soft-metal tube surfaces\u003c\/li\u003e\n\u003cli\u003e5-inch brush length provides extended scrubbing coverage per pass\u003c\/li\u003e\n\u003cli\u003e1\/4-inch male NPSM threaded connection for use with extension handles or drive tools\u003c\/li\u003e\n\u003cli\u003eSingle stem spiral construction maintains bristle contact around the full bore circumference\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement and standard-service tube brush for use in residential and commercial tube and pipe cleaning applications where a 3-inch diameter nylon brush with a 1\/4-inch male NPSM connection is required.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis brush is typically used by HVAC technicians, plumbers, and maintenance professionals performing tube and coil cleaning. Before use, isolate and de-energize any system whose tubes are being serviced and relieve any pressure per standard lockout\/tagout procedures. Thread the brush onto a compatible extension handle or drive tool before inserting it into the tube bore. Do not force the brush into a bore significantly smaller than the rated brush diameter, as this can deform the stem or damage the bristles.\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: 5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 7.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBristle Material\u003c\/strong\u003e: Nylon\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: 0.25 inches\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: 0.32 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: 43756\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SCHAEFER BRUSH","offers":[{"title":"Default Title","offer_id":51540547273010,"sku":"43756","price":20.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/074160d16121f5188d7a9c620d2157d0.jpg?v=1785858153","url":"https:\/\/voomisupply.com\/products\/schaefer-brush-43756-spiral-tube-brush-3-in-nylon","provider":"Voomi Supply","version":"1.0","type":"link"}