Stack - 5 Gallon spl_dlw Grodan Blocks - Grodan Delta

Grodan Blocks - Grodan Delta blocks are the most uniform blocks available on the market

We start with carefully designed and tested recipes and the very best ingredients

Power Supply: 100 - 150W

* All Vortex PROfilters have a Max Operating Temperature of 175°F

For vegetative growth

Stack - 5 Gallon spl_dlw Grodan Blocks - Grodan DeltaStack is a natural plant nutrient made from kelp extract. The nutrients in Stack encourage healthy growth and flowering. Stack gives the plant tools to reach its full genetic potential. When used as a foliar or root drench, Stack helps correct minor potassium deficiencies. Instructions for use: May be used as a foliar spray or root drench, one application weekly. Safe for use in irrigation systems. Stack contains organic ingredients and may separate