{"product_id":"schaefer-brush-30663-fiberglass-brush-handle-extension","title":"Schaefer Brush 30663 Fiberglass Brush Handle Extension","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SCHAEFER BRUSH 30663 is a fiberglass handle extension designed to increase reach when using tube brushes and scrapers. Measuring 36 inches in overall length with a 0.35-inch diameter shaft, it connects via a 1\/4-inch NPSM female fitting on one end and a 1\/4-inch NPSM male fitting on the other, allowing inline coupling with compatible brush handles or additional extensions. The fiberglass construction keeps the extension lightweight at 0.46 pounds while resisting corrosion and flex fatigue common in wet or chemical-exposure environments. Plumbers, HVAC technicians, and maintenance professionals use this extension when standard-length brush handles cannot reach deep into tubes, heat exchangers, coils, or conduit runs.\u003c\/p\u003e\u003cp\u003eThis extension is suited for residential and commercial service applications where tube brushes or scrapers are used to clean or clear heat exchanger flues, boiler tubes, drain lines, condenser coils, and similar tubular passages. The 36-inch length provides meaningful added reach without requiring the technician to reposition or disassemble adjacent components. The 1\/4-inch NPSM thread standard is widely used among brush and scraper handle systems, making this a practical add-on for field service kits.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e36-inch overall length adds significant reach for deep tube and flue cleaning tasks\u003c\/li\u003e\n\u003cli\u003eFiberglass shaft resists corrosion, moisture, and common cleaning chemicals\u003c\/li\u003e\n\u003cli\u003e0.35-inch shaft diameter keeps weight low while maintaining handling rigidity\u003c\/li\u003e\n\u003cli\u003e1\/4-inch NPSM female and male threaded ends allow daisy-chaining with other compatible extensions\u003c\/li\u003e\n\u003cli\u003eLightweight at 0.46 pounds, reducing fatigue during extended use\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with tube brushes and scrapers featuring 1\/4-inch NPSM threaded connections. Consult your brush or scraper manufacturer to confirm thread compatibility before use.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThread the NPSM female end onto the brush or scraper handle by hand until snug; avoid over-tightening fiberglass-threaded fittings, which can crack under excessive torque. When working inside HVAC equipment or boiler systems, ensure the appliance is powered down and, where applicable, gas supply is shut off before beginning any flue or heat exchanger cleaning. Multiple extensions may be coupled in series to increase reach further. Handle with care on sharp metal edges to avoid surface abrasion on the fiberglass shaft.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 36 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShaft Diameter\u003c\/strong\u003e: 0.35 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnection Type\u003c\/strong\u003e: 1\/4 inch NPSM Female \/ 1\/4 inch NPSM Male\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Fiberglass\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.46 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: 30663\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SCHAEFER BRUSH","offers":[{"title":"Default Title","offer_id":51540795949362,"sku":"30663","price":18.86,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/4d62f3b8c5311caf1888909377e9982a_5d9b115e-fc38-45cf-b867-420de465a8f0.jpg?v=1785864073","url":"https:\/\/voomisupply.com\/products\/schaefer-brush-30663-fiberglass-brush-handle-extension","provider":"Voomi Supply","version":"1.0","type":"link"}