GroLine pH 4.01 Buffer Sachets, 20 mL (25 pcs.) HPS Wait till you add DEEP

Wait till you add DEEP BREATH to your feeding regimen

has no on/off buttons to worry about and does not need calibrating

This product is a replacement part for the old style HF COSYS

The idea is similar to a Prune Pot (fabric pot)

minimal pH drift is assured

GroLine pH 4.01 Buffer Sachets, 20 mL (25 pcs.) HPS Wait till you add DEEPHI70004G 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!