{"product_id":"schaefer-brush-43394-double-stem-spiral-tube-brush","title":"Schaefer Brush 43394 Double Stem Spiral Tube Brush","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SCHAEFER BRUSH 43394 is a double stem spiral tube brush designed for cleaning the interior surfaces of pipes, tubes, and conduit. It features a 12-inch brush diameter and a 7-1\/2-inch overall length, with a 4-1\/2-inch brush and scraper length. The bristles are constructed from tempered steel wire, making the brush suited for removing scale, debris, and buildup from metal pipe interiors. A 1\/4-inch male NPT connection allows attachment to standard extension rods or drill chucks. This brush is commonly used by HVAC technicians, plumbers, and mechanical contractors during maintenance and cleaning operations.\u003c\/p\u003e\u003cp\u003eThis tube brush is appropriate for residential and light commercial applications where internal pipe cleaning is required. Typical use cases include boiler tube cleaning, heat exchanger service, condenser tube maintenance, and drain line clearing. The 12-inch diameter makes it suited for large-bore pipe and tube cleaning tasks where smaller brushes are insufficient. The spiral stem design helps the brush maintain contact with tube walls through the full stroke of the cleaning pass.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e12-inch brush diameter for large-bore tube and pipe cleaning\u003c\/li\u003e\n\u003cli\u003eTempered steel wire bristles for aggressive scale and debris removal\u003c\/li\u003e\n\u003cli\u003eDouble stem spiral construction maintains consistent wall contact\u003c\/li\u003e\n\u003cli\u003e4-1\/2-inch brush and scraper length provides extended cleaning coverage\u003c\/li\u003e\n\u003cli\u003e1\/4-inch male NPT connection compatible with standard extension rods and drill adapters\u003c\/li\u003e\n\u003cli\u003e7-1\/2-inch overall length for controlled access in confined installations\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement brush for use in residential and commercial pipe and tube cleaning applications requiring a 12-inch diameter double stem spiral configuration with a 1\/4-inch male NPT connection.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and use of this brush is typically performed by HVAC technicians, plumbers, or mechanical contractors. Before cleaning any pipe or tube system, shut off and isolate the system per applicable safety procedures, and relieve any pressure in the line. The brush can be used manually or attached to a power drill via a compatible adapter. Always wear appropriate personal protective equipment when using wire brushes to guard against bristle breakage.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrush Diameter\u003c\/strong\u003e: 12 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 7-1\/2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrush and Scraper Length\u003c\/strong\u003e: 4-1\/2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrush 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: 1.3 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: 43394\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SCHAEFER BRUSH","offers":[{"title":"Default Title","offer_id":51542017016114,"sku":"43394","price":53.28,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/8aff0e2193ae0afc26313049207e488d.jpg?v=1785889714","url":"https:\/\/voomisupply.com\/products\/schaefer-brush-43394-double-stem-spiral-tube-brush","provider":"Voomi Supply","version":"1.0","type":"link"}