{"product_id":"schaefer-brush-43562-spiral-tube-brush-3-5-in-stainless","title":"Schaefer Brush 43562 Spiral Tube Brush 3.5 in Stainless","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SCHAEFER BRUSH 43562 is a double stem, double\/single spiral tube brush built for cleaning tube interiors, pipe bores, and cylindrical passages in HVAC, plumbing, and industrial maintenance applications. The brush measures 3.5 inches in diameter with an overall length of 7.25 inches and an active brush length of 4.5 inches. Both the bristles and the core stem are constructed from stainless steel, making the assembly resistant to corrosion and suitable for wet or chemically active environments. The 1\/4-inch male NPSM connection allows it to mount directly to standard extension rods or cleaning machine chucks for powered or manual operation.\u003c\/p\u003e\n\u003cp\u003eThis tube brush is suited for residential and commercial service work where technicians need to clear scale, debris, or fouling from tube sheets, heat exchanger tubes, condenser tubes, and similar cylindrical passages. The double stem construction adds rigidity across the brush length, which helps maintain consistent contact with tube walls during scrubbing. HVAC technicians, plumbers, and industrial maintenance professionals are the primary installers. The stainless steel construction makes it a good fit for service on copper, steel, and stainless tube materials.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eDouble stem construction provides added rigidity for consistent tube-wall contact\u003c\/li\u003e\n  \u003cli\u003e3.5-inch brush diameter for cleaning medium to large tube bores\u003c\/li\u003e\n  \u003cli\u003e4.5-inch active brush length covers extended tube passes per stroke\u003c\/li\u003e\n  \u003cli\u003eStainless steel bristles resist corrosion in wet and chemically active service environments\u003c\/li\u003e\n  \u003cli\u003e1\/4-inch male NPSM connection is compatible with standard extension rods and cleaning chucks\u003c\/li\u003e\n  \u003cli\u003eStainless steel stem and core construction for long service life\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement and service brush for use with standard 1\/4-inch NPSM threaded extension rods and tube cleaning systems used in HVAC, plumbing, and industrial maintenance applications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThread the 1\/4-inch male NPSM connection securely onto a compatible extension rod or cleaning chuck before use. Ensure the tube or pipe being cleaned is depressurized and isolated from fluid flow prior to inserting the brush. For powered cleaning applications, verify the drive tool RPM is appropriate for the brush diameter to avoid bristle damage or excessive wear. Inspect bristles for flare or deformation after each use and replace the brush if the diameter has worn below the target tube bore size.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrush Diameter\u003c\/strong\u003e: 3.5 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\u003eBrush Length\u003c\/strong\u003e: 4.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBristle Material\u003c\/strong\u003e: Stainless Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStem Material\u003c\/strong\u003e: Stainless Steel\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: 0.54 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: 43562\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SCHAEFER BRUSH","offers":[{"title":"Default Title","offer_id":51543082107186,"sku":"43562","price":39.68,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/b63d38a9e41cbbc092930716d9fe4ade.jpg?v=1785915127","url":"https:\/\/voomisupply.com\/products\/schaefer-brush-43562-spiral-tube-brush-3-5-in-stainless","provider":"Voomi Supply","version":"1.0","type":"link"}