HANNA GroLine pH 4.01 Calibration Buffer Sachets, 20 mL

In stock
SKU: HI70004G
Regular price $1.69


Calibration Solutions

HI70004G is a high quality pH 4.01 calibration buffer designed with hydroponics, aquaponics, and greenhouses in mind.

Single-use sachets are highly portable, with a small footprint and a lightweight design.

They are the perfect accessory for your on-the-go testing, fitting easily into your pocket or carrying case.

  • Supplied with Certificate of Analysis
  • Single-use sachets for convenience.
  • Perfect for use with GroLine testers and portable meters!