Grodan Gro Block Improved Mini Block 1.5" Shrink wrapped/Strip Hygrometer GroStar by Apera pH calibration

GroStar by Apera pH calibration kit (pH 4/7

pH Up and Down are buffers composed of a weak base (Up) and weak acid (Down) designed to correct pH imbalances

The double junction junction design reduces the risk of clogging

Run at 100%

Rock phosphate applications to soils with pH greater than 5

Grodan Gro Block Improved Mini Block 1.5" Shrink wrapped/Strip Hygrometer GroStar by Apera pH calibrationGrodan Gro Block Improved Mini Block 1. 5" Shrink wrapped Strip Product Details Grodan Improved Gro Block Improved Mini Block 1. 5" Shrink wrapped Strip Grodan partnered with the Wageningen University and Research facility in The Netherlands and top growers throughout North America to identify the optimal stone wool substrate and irrigation strategies for specialty crops. The result of months of scientific research and trials is Grodan Gro Blocks