Grodan Delta 5.6 - 3 in Block 3 in x 3 in x 4 in w/ Hole

Grodan Gro-Blocks 3"x3"x4" With Hole case of 256. Grodan Delta 5.6 is an alternative to the traditional potting container. Grodan also manufactures their blocks to have a tremendous capacity for absorbing nutrient solution while retaining plenty of oxygen for rapid plant growth. They are also ideal for high volume greenhouses where grow space is an issue. Various sizes available. 3 inch Block with Hole. Dimensions: 3in Block 3in x 3in x 4in