REED R1007 pH 7 Calibration Buffer Pouches, 20-Pack
✔FREE Domestic Shipping Orders $99+
✔Live Expert Customer Service
✔Best Price Guarantee
✔Easy 30-Day Returns
20 individual pH buffer powder packs for quick and accurate on-site calibration. Simply mix the powder with 8.45oz (250mL) of deionized water and stir until the powder has dissolved. Each individual pack includes a temperature vs. pH chart for easy reference.