{"product_id":"ph7-calibration-solution-16-oz","title":"PH7 Calibration Solution, 16 oz","description":"\u003cp\u003eAll Hanna solution bottles come with a pH Vs. temperature chart together with the production lot # and expiration date to guarantee maximum accuracy.\u003c\/p\u003e  \u003cp\u003eFormulation Hanna pH buffers are made of potassium dihydrogen phosphate and disodium hydrogen phosphate and are standardized with a pH meter calibrated to NIST primary standard buffer solutions (NIST 186Ie \u0026amp; 186IIe and NIST 158 g S.R.M.).\u003c\/p\u003e","brand":"Hydrofarm","offers":[{"title":"Default Title","offer_id":32109291143253,"sku":"HI7007L","price":19.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/3099\/1090\/products\/HI7007L_1.jpg?v=1588094304","url":"https:\/\/growmasters.com\/products\/ph7-calibration-solution-16-oz","provider":"Grow Masters","version":"1.0","type":"link"}