{"product_id":"schaefer-brush-43842-spiral-tube-brush-1-3-4-in-stainless-steel","title":"Schaefer Brush 43842 Spiral Tube Brush 1-3\/4 in Stainless Steel","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SCHAEFER BRUSH 43842 is a double stem spiral tube brush designed for scrubbing and cleaning the interior walls of tubes, pipes, and cylindrical passages. The brush features stainless steel bristles mounted on a stainless steel stem, making it suitable for applications where corrosion resistance and bristle durability are required. It measures 1-3\/4 inches in diameter with an overall length of 7-1\/4 inches and a brush length of 4-1\/2 inches. The 1\/4 inch male NPSM threaded connection allows the brush to be attached to standard extension handles or drive rods. This tool is commonly installed and used by HVAC technicians, plumbers, and industrial maintenance professionals performing tube and pipe cleaning tasks.\u003c\/p\u003e\n\u003cp\u003eThis spiral tube brush is suited for cleaning heat exchanger tubes, condenser tubes, boiler flues, pipe interiors, and similar cylindrical surfaces in both residential and commercial applications. The double stem spiral construction holds bristles firmly in place during rotation or reciprocating motion, providing consistent scrubbing contact around the full interior circumference of the tube. The 1\/4 inch NPSM male connection is compatible with standard brush extension handles and drill adapters used in trade service applications.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eStainless steel bristles resist corrosion and maintain stiffness across a wide range of cleaning environments\u003c\/li\u003e\n  \u003cli\u003eDouble stem spiral construction secures bristles and provides even contact along tube walls\u003c\/li\u003e\n  \u003cli\u003e1-3\/4 inch brush diameter for cleaning tubes and pipes of matching bore size\u003c\/li\u003e\n  \u003cli\u003e4-1\/2 inch brush length allows effective scrubbing reach within tube passages\u003c\/li\u003e\n  \u003cli\u003e1\/4 inch male NPSM threaded connection fits standard extension handles and drill adapters\u003c\/li\u003e\n  \u003cli\u003e7-1\/4 inch overall length suitable for shallow-access tube cleaning tasks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or service brush for use in tube and pipe cleaning applications requiring a 1-3\/4 inch diameter brush with a 1\/4 inch male NPSM threaded connection.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis brush is typically used by HVAC technicians, plumbers, and maintenance professionals servicing tube-and-shell heat exchangers, condensers, or boiler flues. Before use, shut down and isolate the equipment being serviced per applicable safety procedures. Attach the brush to a compatible extension handle or drill adapter using the 1\/4 inch NPSM male connection, ensuring the connection is fully threaded and secure before applying rotational or reciprocating force. Inspect bristles for wear or deformation before each use and replace the brush if bristles are bent, matted, or significantly shortened.\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 Spiral Tube Brush\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrush Diameter\u003c\/strong\u003e: 1-3\/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\/4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBristle Material\u003c\/strong\u003e: Stainless Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrush 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: 0.42 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\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: 43842\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SCHAEFER BRUSH","offers":[{"title":"Default Title","offer_id":51539277414706,"sku":"43842","price":29.43,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/c93f95b1063430fffded730b4083633e.jpg?v=1785837666","url":"https:\/\/voomisupply.com\/products\/schaefer-brush-43842-spiral-tube-brush-1-3-4-in-stainless-steel","provider":"Voomi Supply","version":"1.0","type":"link"}