Grodan PRO Delta 4 - 3 in Small Unwrapped Liquid & Weight Measuring The Gro Pro

The Gro Pro

vegetables and various ornamentals

SPO Big Time Rinse 2

It delivers the essential elements to the roots of a plant in a more precise manner

Filter cartridge (part #727992) is not included and must be purchased separately

Grodan PRO Delta 4 - 3 in Small Unwrapped Liquid & Weight Measuring The Gro ProGro 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.