{"product_id":"pro-fit-imp-a-100-circulator-pump-impeller-2-75-in","title":"Pro-fit IMP-A-100 Circulator Pump Impeller 2.75 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe PRO-FIT IMP-A-100 is a replacement impeller designed for use in circulator pumps found in hydronic heating and cooling systems. Measuring 2.75 inches in length, it is constructed from composite Noryl material and features an integrally molded brass key insert that reinforces the connection point and resists wear under continuous pump operation. This impeller is engineered to match original equipment performance curves, making it a direct-fit replacement suitable for restoring circulator pump output without retesting system flow. Licensed HVAC technicians and plumbers handling hydronic system service are the primary installers.\u003c\/p\u003e\n\u003cp\u003eThis impeller is suited for both open and closed hydronic system applications, including residential and light commercial heating loops. Its performance curve match makes it applicable in scenarios where the original impeller has worn or failed and a like-for-like replacement is needed to maintain system GPM and head pressure. The composite Noryl construction handles the thermal and chemical demands typical of circulating hot or chilled water loops.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eComposite Noryl construction resists heat, corrosion, and chemical exposure in hydronic systems\u003c\/li\u003e\n  \u003cli\u003eIntegrally molded brass key insert adds mechanical strength at the shaft interface\u003c\/li\u003e\n  \u003cli\u003eEngineered to match Bell and Gossett and Armstrong original performance curves\u003c\/li\u003e\n  \u003cli\u003eCompatible with both open and closed hydronic system configurations\u003c\/li\u003e\n  \u003cli\u003e2.75-inch length provides direct dimensional replacement fitment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned to match original performance curves for Bell and Gossett and Armstrong circulator pumps. Verify impeller size and pump model before installation to confirm fitment.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a licensed plumber or HVAC technician. Shut off power to the circulator pump and isolate the pump from system pressure before disassembly. Ensure the shaft key and keyway are clean and undamaged before seating the new impeller. Follow the pump manufacturer's reassembly sequence and confirm proper rotation direction before returning the system to service.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eItem Type\u003c\/strong\u003e: Impeller\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 2.75 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Composite Noryl with Brass Key Insert\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Circulator Pump, Open or Closed System\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: PRO-FIT\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: IMP-A-100\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PRO-FIT","offers":[{"title":"Default Title","offer_id":51284089569586,"sku":"IMP-A-100","price":18.01,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/309278529.jpg?v=1781068283","url":"https:\/\/voomisupply.com\/products\/pro-fit-imp-a-100-circulator-pump-impeller-2-75-in","provider":"Voomi Supply","version":"1.0","type":"link"}