{"product_id":"grundfos-99411165","title":"Grundfos ALPHA2 15-55F SF Variable Speed Circulator","description":"\u003cdiv class=\"product-description-wrapper\" style=\"font-family: Arial, sans-serif; line-height: 1.6; color: #333; margin-bottom: 25px;\"\u003e\n  \u003cp style=\"margin-bottom: 16px;\"\u003e\n    The \u003cstrong\u003eGrundfos ALPHA2 15-55F SF Variable Speed Circulator Pump (Model 99163937)\u003c\/strong\u003e represents the pinnacle of high-efficiency, residential and light-commercial hydronic flow technology. Engineered with a premium stainless steel pump housing and a cutting-edge electronically commutated motor (ECM), this variable-speed circulator is fully certified for both open-loop domestic potable hot water systems and closed-loop heating applications. Featuring Grundfos's patented AUTOADAPT™ intelligence, the ALPHA2 continuously analyzes zone dynamics to automatically self-adjust its performance curve—maximizing energy savings while eliminating hydraulic noise.\n  \u003c\/p\u003e\n\n  \u003cp style=\"margin-bottom: 12px;\"\u003e\u003cstrong style=\"font-size: 15px; color: #111;\"\u003eKey Performance Features:\u003c\/strong\u003e\u003c\/p\u003e\n  \u003cul style=\"margin-top: 0; margin-bottom: 20px; padding-left: 20px;\"\u003e\n    \u003cli style=\"margin-bottom: 10px;\"\u003e\n      \u003cstrong\u003ePatented AUTOADAPT™ Energy Optimization:\u003c\/strong\u003e Automatically scales motor output up or down based on real-time zone valve fluctuations, slashing electrical consumption by up to 85% compared to standard single-speed circulators.\n    \u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 10px;\"\u003e\n      \u003cstrong\u003ePremium Stainless Steel Casing (SF):\u003c\/strong\u003e Forged from high-grade stainless steel to ensure complete corrosion resistance and compliance with stringent NSF\/ANSI lead-free drinking water mandates.\n    \u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 10px;\"\u003e\n      \u003cstrong\u003eAdvanced Control Matrix:\u003c\/strong\u003e Offers multiple selectable modes with a clean digital LED watt\/flow display, including three constant pressure settings, three constant curve settings, and standard automatic profiling.\n    \u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003cp style=\"margin-top: 16px; margin-bottom: 0;\"\u003e\n    \u003cstrong\u003eApplication Profile:\u003c\/strong\u003e Ideal for domestic hot water recirculation networks, multi-zone radiant floor manifolds, geothermal loops, indirect seasonal heating zones, and high-efficiency institutional boiler system arrays.\n  \u003c\/p\u003e\n\u003c\/div\u003e","brand":"Grundfos","offers":[{"title":"Default Title","offer_id":42910020796510,"sku":"99411165","price":695.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/Grundfos_ALPHA2_15-55F_SF_variable_speed_ECM_circulator_pump_displaying_the_stainless_steel_flanged_connection_housing_clear_unpainted_metal_finish_and_the_digital_push-button_LED_user_interface_panel..jpg?v=1782086966","url":"https:\/\/nationalboilersupply.com\/products\/grundfos-99411165","provider":"National Boiler Supply","version":"1.0","type":"link"}