Grodan Stonewool Delta Gro-Blocks & Big Mama Options:Grodan Delta 6.5 - 4 in Block 4 in x 4 in x 2.5 in w/ Hole (36/Cs) Select two containers of equal

Select two containers of equal volume based on the size batch being used

Use to connect 1" tubing to 3/4" tubing

Ebb & Flow Tub Outlet Fittings Drain Extension Fitting

The base ingredients in Grow Natural will promote and facilitate the growth of beneficial bacteria and fungi in your growing media

The 125 Watt and 200 Watt lamps require a mogul socket

Grodan Stonewool Delta Gro-Blocks & Big Mama Options:Grodan Delta 6.5 - 4 in Block 4 in x 4 in x 2.5 in w/ Hole (36/Cs) Select two containers of equalGro 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.