{"product_id":"lochinvar-du-939-user-interface-digital-display-control-board-100208468-rly20031","title":"Lochinvar DU-939 User Interface Digital Display Control Board 100208468 RLY20031","description":"\u003cp\u003e\u003cstrong\u003e\u003cem\u003eThis product may contain shelf wear, have minor cosmetic imperfections, or have been tested. All our certified pre-owned products are backed by our return policy. We offer free shipping on all items. Please contact us for discounts or if you have any questions. We look forward to doing business with you!\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e• Compatible model: Lochinvar DU-939 heating system controller\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e• Part number: 100208468, RLY20031 • Digital display user interface for control and status feedback • Microprocessor-driven board for interpreting system sensor inputs • Enables adjustment and optimization of boiler or heating components • Provides clear operational data via digital display • Designed for reliable, long-term operation in HVAC systems • Facilitates diagnostics and user interaction with system controls\u003c\/p\u003e","brand":"Lochinvar","offers":[{"title":"Default Title","offer_id":43673099731053,"sku":"14071","price":390.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0637\/2419\/1853\/files\/s-l800_df117fdb-5b20-448a-982f-c26ae64b9771.jpg?v=1763347704","url":"https:\/\/willardshvacsupply.com\/products\/lochinvar-du-939-user-interface-digital-display-control-board-100208468-rly20031","provider":"Willard's HVAC Supply","version":"1.0","type":"link"}