Grodan Stonewool Delta Gro-Blocks & Big Mama dupe Built-in socket with 15' ballast

Built-in socket with 15' ballast cord

Used in higher hanging applications

Put the dry powdered product mixed with water or compost tea into each hole

pH Combo Electrode Glass Body - Refillable Temp Sensor

Grodan Stonewool Delta Gro-Blocks & Big Mama dupe Built-in socket with 15' ballastGro Blocks are similar to a plant container. Need a 3 in pot? Then choose a 3 in Gro Block. Small plants can be fully grown in our larger Gro Blocks. Holes are perfect size for any 1. 5 in starter plug. Come in packs labeled with instructions. Big Mama is Grodan's largest block ever produced! Big enough to grow a large plant for its entire life. More than twice the amount of wool as our Hugo Block.