{"product_id":"schaefer-brush-43568-spiral-tube-brush-4-in-stainless","title":"Schaefer Brush 43568 Spiral Tube Brush 4 in Stainless","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SCHAEFER BRUSH 43568 is a double stem, double\/single spiral tube brush designed for cleaning the interior of tubes, pipes, and bores in industrial and mechanical service applications. The brush measures 4 inches in diameter with a 4.5-inch brush length and a 7.25-inch overall length. Stainless steel bristles deliver corrosion resistance and durability in wet, chemical, or high-wear environments. The 0.25-inch NPSM male connection allows direct attachment to standard extension rods and drill adapters. This tool is typically used by HVAC technicians, plumbers, and industrial maintenance personnel for tube-cleaning tasks during installation, maintenance, or commissioning work.\u003c\/p\u003e\n\u003cp\u003eThe 43568 tube brush is suited for use in residential and commercial maintenance applications where consistent bore cleaning is required. Common uses include cleaning heat exchanger tubes, condenser tubes, boiler flues, and pipe interiors prior to inspection or reassembly. The stainless steel construction holds up in applications involving moisture, mild acids, or caustic residues where carbon steel bristles would corrode or degrade prematurely. The double stem design provides added rigidity to maintain brush shape and contact pressure throughout the cleaning pass.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e4-inch diameter brush head fits standard tube and pipe bore sizes in that range\u003c\/li\u003e\n  \u003cli\u003eStainless steel bristles and stem construction for corrosion resistance in wet or chemical environments\u003c\/li\u003e\n  \u003cli\u003e4.5-inch brush length provides extended contact area per pass\u003c\/li\u003e\n  \u003cli\u003e0.25-inch NPSM male connection is compatible with common extension rods and drill chucks\u003c\/li\u003e\n  \u003cli\u003eDouble stem design adds rigidity and maintains brush geometry under load\u003c\/li\u003e\n  \u003cli\u003eLightweight at 0.58 pounds for easy one-handed use or power-drill attachment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with standard 0.25-inch NPSM male threaded extension rods and brush handles used in tube and pipe cleaning operations. Verify bore diameter before use to ensure proper bristle contact and effective cleaning.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eA licensed HVAC technician, plumber, or qualified maintenance mechanic should confirm tube or bore diameter matches the brush diameter before use. Power down and de-energize any associated equipment and relieve system pressure before inserting the brush into a live circuit or pressurized tube. When attaching to a power drill, secure the NPSM connection firmly and operate at a controlled speed to prevent bristle flare or stem fatigue. Wear appropriate eye and hand protection when using rotary brush tools.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\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\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: 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: 0.58 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: 43568\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SCHAEFER BRUSH","offers":[{"title":"Default Title","offer_id":51539191791922,"sku":"43568","price":41.57,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/b0687e8b9d87e9fdec04b89dd966124f.jpg?v=1785836301","url":"https:\/\/voomisupply.com\/products\/schaefer-brush-43568-spiral-tube-brush-4-in-stainless","provider":"Voomi Supply","version":"1.0","type":"link"}