{"product_id":"hydrothermal-spring","title":"Hydrothermal Spring","description":"\u003cp\u003e\u003cspan\u003eHydrothermal Spring is built with a moderate colorant saturation that produces shades that shift from a rich aquatic teal to a soft navy in saturation.\u003cspan class=\"Apple-converted-space\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-sheets-root=\"1\" data-sheets-value='{\"1\":2,\"2\":\"Hydrothermal Spring\"}' data-sheets-userformat='{\"2\":33567427,\"3\":{\"1\":0},\"4\":{\"1\":2,\"2\":14743546},\"9\":1,\"10\":2,\"12\":0,\"15\":\"Roboto\",\"16\":12,\"28\":1}'\u003eHydrothermal Spring\u003c\/span\u003e is part of the Keystone Formula fountain pen ink line, our traditional dye-colorant ink. \u003cspan\u003eThe 50mL volume will provide approximately 62 standard converter refills assuming a 0.8mL draw.\u003c\/span\u003e\u003cspan\u003e Our ink swatch is produced with a cotton swab on Tomoe River paper. \u003cmeta charset=\"utf-8\"\u003eWe manufacture this ink in Pennsylvania with domestic and imported ingredients.\u003c\/span\u003e\u003c\/p\u003e","brand":"Fountain Pen Ink","offers":[{"title":"50mL Glass Bottle","offer_id":47365908300018,"sku":"PN100742","price":17.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1237\/1088\/files\/Hydrothermal_Spring_29eabd0d-551a-4a9b-a472-ce3ba5337391.jpg?v=1747409091","url":"https:\/\/www.birminghampens.mom\/products\/hydrothermal-spring","provider":"Birmingham Pen Company","version":"1.0","type":"link"}