Shade Cloth 30% Black 32 x 100 FT house and amp The Bluelab calibration and conductivity

The Bluelab calibration and conductivity standard solutions are essential for use with all Bluelab products for the calibration of pH and testing the cleanliness of the Bluelab Conductivity/Temperature probe

Hammered style reflection for professional result

This makes up your stock solution

Sold in case of 25

Shade Cloth 30% Black 32 x 100 FT house and amp The Bluelab calibration and conductivityGROW1 Greenhouse Shade Cloth is constructed of a knitted, heavy duty, high density polyethylene (HDPE) built to withstand the elements and years of use. Manufactured from HDPE with UV Protection, durable enough to withstand all weather conditions. Provides optimal visibility blockage due to the unique knitted light deprivation design. Features Black Knitted HDPE Material 32ft x 100ft Size 30% Light Deprivation Durable + High Airflow Material