{"product_id":"bluelab-ph-7-0-calibration-solution-sachet-18ml","title":"Bluelab pH 7.0 Calibration Solution Sachet – 18 ml Single-Use Neutral Buffer for pH Meters \u0026 Pens","description":"\u003ch1\u003eBluelab pH 7.0 Calibration Solution – 18 ml Single-Use Sachet\u003c\/h1\u003e\n\u003cp\u003e\u003cstrong\u003eThe essential neutral reference point for accurate, reliable pH calibration.\u003c\/strong\u003e The Bluelab pH 7.0 Calibration Solution sachet provides a certified neutral buffer for calibrating any pH meter, pen, monitor, or controller. Used as the primary calibration point in both two-point and three-point routines, pH 7.0 is the cornerstone of every accurate pH measurement.\u003c\/p\u003e\n\u003cp\u003eWhether you're dialing in nutrient solution pH in your grow room, verifying water quality in the lab, or maintaining aquarium chemistry — a fresh, uncontaminated pH 7.0 sachet gives you the confidence that your readings are spot-on before you even dip your probe.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e✅ \u003cstrong\u003ePrecise pH 7.0 neutral buffer\u003c\/strong\u003e — certified reference point for accurate single-, two-, or three-point calibration\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eSingle-use 18 ml \/ 0.6 fl oz sachets\u003c\/strong\u003e — eliminates cross-contamination between calibrations\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eEasy tear-open design\u003c\/strong\u003e — no scissors needed; calibrate anywhere in seconds\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003ePortable sachet format\u003c\/strong\u003e — perfectly sized for on-the-go and field calibration\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eCompatible with all Bluelab pH meters, monitors, and pens\u003c\/strong\u003e — and any standard pH probe\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eMade in New Zealand\u003c\/strong\u003e — Bluelab quality assurance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cdiv class=\"overflow-x-auto tech-specs-table-wrapper\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBluelab\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSolution Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003epH Calibration Buffer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003epH Value\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e7.0 (neutral reference point)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVolume per Sachet\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e18 ml \/ 0.6 fl oz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFormat\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSingle-use tear-open sachet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePH718B-1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBarcode\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e9421024921477\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNew Zealand\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eWhen to Use pH 7.0 Buffer\u003c\/h2\u003e\n\u003cp\u003epH 7.0 is the \u003cstrong\u003eneutral calibration point\u003c\/strong\u003e and the most commonly used buffer in pH calibration. It is the required reference in single-point calibration and the midpoint in two-point (pH 4.0 + 7.0) and three-point (pH 4.0 + 7.0 + 10.0) calibration routines. Always calibrate with fresh solution for best accuracy — never reuse sachets.\u003c\/p\u003e\n\n\u003ch2\u003eIdeal Applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eHydroponics and indoor growing — nutrient solution pH management\u003c\/li\u003e\n\u003cli\u003eAquariums and aquaculture — water quality monitoring\u003c\/li\u003e\n\u003cli\u003eLaboratories and educational institutions\u003c\/li\u003e\n\u003cli\u003eEnvironmental and field water testing\u003c\/li\u003e\n\u003cli\u003eFood and beverage quality control\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatible With\u003c\/h2\u003e\n\u003cp\u003eWorks with \u003cstrong\u003eall Bluelab pH meters, pens, monitors, and controllers\u003c\/strong\u003e, as well as any third-party pH probe or meter requiring a pH 7.0 calibration buffer.\u003c\/p\u003e\n\n\u003ch2\u003eComplete Your Calibration Kit\u003c\/h2\u003e\n\u003cp\u003eFor two-point calibration, pair with the \u003cstrong\u003eBluelab pH 4.0 Calibration Solution sachet\u003c\/strong\u003e. For three-point calibration, add the \u003cstrong\u003eBluelab pH 10.0 Calibration Solution sachet\u003c\/strong\u003e for full-range accuracy.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eNote: Use fresh solution for each calibration. Do not reuse sachets. Store in a cool, dry place away from direct sunlight.\u003c\/em\u003e\u003c\/p\u003e","brand":"Bluelab","offers":[{"title":"Default Title","offer_id":42659718758487,"sku":"PH718B-1","price":9.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1555\/0581\/files\/WhatsAppImage2026-04-03at3.43.34PM.jpg?v=1775246727","url":"https:\/\/getultimatenow.com\/products\/bluelab-ph-7-0-calibration-solution-sachet-18ml","provider":"Get Ultimate Now ","version":"1.0","type":"link"}