{"product_id":"armstrong-410133-111-ultem-impeller-assembly-1-25x1-for-4270-series","title":"Armstrong 410133-111 Ultem Impeller Assembly 1.25x1 for 4270 Series","description":"\u003cp\u003eMaintain peak efficiency in your hydronic systems with this precision-engineered replacement impeller assembly. Designed specifically for the 4270 series, the \u003cstrong\u003e410133-111\u003c\/strong\u003e impeller restores balanced flow and quiet operation to your Armstrong pumping equipment. This high-durability component is built to withstand rigorous operating conditions while ensuring consistent performance across your HVAC infrastructure.\u003c\/p\u003e\u003cp\u003eThe impeller acts as the heart of your centrifugal pump, utilizing its specialized Ultem construction to move fluid effectively while resisting corrosion and mineral buildup. By replacing a worn or damaged impeller with this original equipment manufacturer (OEM) part, you minimize vibration, reduce thermal stress on the pump motor, and ensure the hydraulic efficiency required for high-demand circulation loops.\u003c\/p\u003e\u003ch4\u003eKey System Performance Baselines:\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Resilience:\u003c\/strong\u003e High-grade Ultem construction provides exceptional heat and chemical resistance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHydraulic Precision:\u003c\/strong\u003e Engineered to specific 1.25x1 geometry for optimal pressure head.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem Compatibility:\u003c\/strong\u003e Fully compatible with Armstrong 4270 series pump housings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEfficiency Restoration:\u003c\/strong\u003e Eliminates cavitation caused by worn vanes to return pumps to factory-rated flow rates.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e⚠️ \u003cstrong\u003eApplication Profile:\u003c\/strong\u003e Recommended for commercial and residential hydronic heating, chilled water cooling loops, and domestic hot water circulation systems requiring reliable, steady-state fluid delivery.\u003c\/p\u003e","brand":"Armstrong","offers":[{"title":"Default Title","offer_id":43129584844894,"sku":"410133-111","price":329.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/410133_111_image_dff91936-eeee-47f7-a571-9c717aaccc9f.png?v=1786081922","url":"https:\/\/nationalboilersupply.com\/products\/armstrong-410133-111-ultem-impeller-assembly-1-25x1-for-4270-series","provider":"National Boiler Supply","version":"1.0","type":"link"}