{"product_id":"schaefer-brush-43868-spiral-tube-brush-4in-stainless-steel","title":"Schaefer Brush 43868 Spiral Tube Brush 4in Stainless Steel","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SCHAEFER BRUSH 43868 is a double stem spiral tube brush designed for cleaning the interior of tubes, pipes, and cylindrical passages. It features stainless steel bristles mounted on a stainless steel brush body, making it well suited for applications where corrosion resistance and durability under repeated use are required. The brush measures 4 inches in diameter with a brush length of 4.5 inches and an overall length of 7.25 inches. The 0.25 inch NPSM male connection allows it to attach directly to standard extension rods or drill chucks, giving technicians reach and control during cleaning operations. HVAC service professionals, plumbers, and industrial maintenance technicians commonly use this style of brush for boiler tube cleaning, heat exchanger service, and pipe maintenance.\u003c\/p\u003e\u003cp\u003eThis tube brush is appropriate for residential and commercial service applications where thorough mechanical cleaning of tube interiors is needed. It is a practical choice for heat exchanger tube cleaning, condenser tube service, and similar maintenance tasks. The stainless steel construction handles contact with water, light chemicals, and metal surfaces without significant degradation, making it a durable tool for routine service work.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eDouble stem spiral construction provides even bristle distribution and consistent scrubbing contact along the tube wall\u003c\/li\u003e\n\u003cli\u003eStainless steel bristles resist corrosion and maintain stiffness through repeated cleaning cycles\u003c\/li\u003e\n\u003cli\u003eStainless steel brush body for durability in wet and chemically active environments\u003c\/li\u003e\n\u003cli\u003e0.25 inch NPSM male connection is compatible with standard extension rods and power drill adapters\u003c\/li\u003e\n\u003cli\u003e4 inch brush diameter cleans tubes of matching bore size in a single pass\u003c\/li\u003e\n\u003cli\u003eCompact 7.25 inch overall length suits confined access points\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement and service brush for use with standard 0.25 inch NPSM male extension rod systems in residential and commercial tube cleaning applications.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and use should be performed by qualified HVAC technicians, plumbers, or industrial maintenance personnel. Before beginning any tube cleaning procedure, shut down and de-energize the equipment being serviced and relieve any system pressure in accordance with applicable safety codes. When attaching the brush to a power drill or extension rod, verify the NPSM thread engagement is secure before operation to prevent the brush from detaching inside the tube. Avoid forcing the brush into tubes smaller than the rated brush diameter, as this can damage the bristles and the tube surface.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrush Diameter\u003c\/strong\u003e: 4 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\u003eOverall Length\u003c\/strong\u003e: 7.25 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 Body 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: 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: 0.6 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\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: 43868\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SCHAEFER BRUSH","offers":[{"title":"Default Title","offer_id":51543992664370,"sku":"43868","price":35.53,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d894a2bc34b6edf91b8d252c7ca3b3da.jpg?v=1785922750","url":"https:\/\/voomisupply.com\/products\/schaefer-brush-43868-spiral-tube-brush-4in-stainless-steel","provider":"Voomi Supply","version":"1.0","type":"link"}