Hanna Instruments pH 4.01 Calibration Solution Pest Control & Garden Care Our 2 part system is

Our 2 part system is highly concentrated to save you money while also providing all the necessary nutrients to your plants

This product can be used from vegetating state all the way through flush

our low height trays encourage single layer product drying

White reservoirs feature an outer virgin plastic wrap that resists U

Hanna Instruments pH 4.01 Calibration Solution Pest Control & Garden Care Our 2 part system isThis buffer value is widely used in water purification plants, in the food industry, and wherever the pH is expected to be slightly acidic Hanna Instruments ph 4 Buffer Specs: Traceable to NIST standards Available in bottles or sealed sachets, complete with or without a certificate of analysis Multiple resolutions for better accuracy NIST Traceability Standardized using a pH meter calibrated by means of two standard solutions prepared from NIST