{"product_id":"caleffi-519700a-differential-bypass-valve-1-1-4-in-npt","title":"Caleffi 519700A Differential Bypass Valve, 1-1\/4 in. NPT","description":"\u003cdiv\u003e\n\u003cp\u003eThe Caleffi 519700A is a differential bypass valve with a 1-1\/4 in. NPT connection, used in hydronic heating systems to maintain minimum flow and protect the boiler or circulator when zone valves restrict flow. It is a genuine Caleffi replacement part. Confirm the part number against your equipment's parts list before ordering.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Neuco","offers":[{"title":"Default Title","offer_id":49370746781918,"sku":"519700A","price":303.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/0034\/7102\/files\/nesh-519700a-card.png?v=1793997994","url":"https:\/\/newenglandsupplyhouse.com\/products\/caleffi-519700a-differential-bypass-valve-1-1-4-in-npt","provider":"New England Supply House","version":"1.0","type":"link"}