Quick view 60ML Syringe with plastic needle for EC/pH tests MSRP: $5.45 Was: Now: $4.99 Add to Cart Compare
Quick view Grodan Delta 5.6 - 3 in Block 3 in x 3 in x 4 in w/ Hole MSRP: $8.30 Was: Now: $7.59 Add to Cart Compare
Quick view 60ML Syringe with plastic needle for EC/pH tests The perfect tool for watering Rockwool. The syringe with a needle made from 1/4" tubing allows you to easily take a water sample from your Rockwool. If the water sample shows too high pH, it is time... MSRP: $5.45 Was: Now: $4.99 Add to Cart Compare
Quick view Big Mama 8x8x8 BIG MAMA is the largest block ever produced by Grodan. It is 8" square and contains over twice the amount of rockwool as the popular Hugo block. This block is big enough to grow a large plant for its... MSRP: $7.88 Was: Now: $7.49 Add to Cart Compare
Quick view Classic 30/75 Slab (wet), 12"x3" Grodan Stonewool (rockwool) is made from molten rock spun into cotton candy-like fibers and then compressed into cubes, blocks, or slabs. Where other rockwool brand manufacturers cut all sizes from... MSRP: $15.17 Was: Now: $14.39 Add to Cart Compare
Quick view Delta 10 Block, 4x4x4" Grodan Stonewool (rockwool) is made from molten rock spun into cotton candy-like fibers and then compressed into cubes, blocks, or slabs. Where other rockwool brand manufacturers cut all sizes from... MSRP: $9.20 Was: Now: $8.59 Add to Cart Compare
Quick view Delta 4 Block, 3"x3"x2.5" with hole Grodan Stonewool (rockwool) is made from molten rock spun into cotton candy-like fibers and then compressed into cubes, blocks, or slabs. Where other rockwool brand manufacturers cut all sizes from... MSRP: $5.53 Was: Now: $5.39 Add to Cart Compare
Quick view Delta 4 Block, 3x3x2.5", no hole Grodan Stonewool (rockwool) is made from molten rock spun into cotton candy-like fibers and then compressed into cubes, blocks, or slabs. Where other rockwool brand manufacturers cut all sizes from... MSRP: $5.53 Was: Now: $5.39 Add to Cart Compare
Quick view Delta 6.5 Block, 4"x4"x2.5" Grodan Stonewool (rockwool) is made from molten rock spun into cotton candy-like fibers and then compressed into cubes, blocks, or slabs. Where other rockwool brand manufacturers cut all sizes from... MSRP: $5.75 Was: Now: $5.19 Add to Cart Compare
Quick view Expert 15/100 Slab, 6"x4" PLEASE NOTE: THIS ITEM IS NOW 12 PER CASE. Grodan Stonewool (rockwool) is made from molten rock spun into cotton candy-like fibers and then compressed into cubes, blocks, or slabs. Where other... MSRP: $10.33 Was: Now: $10.09 Add to Cart Compare
Quick view Expert 15/75 Slab, 36x6x3 Grodan Stonewool (rockwool) is made from molten rock spun into cotton candy-like fibers and then compressed into cubes, blocks, or slabs. Where other rockwool brand manufacturers cut all sizes from... MSRP: $7.75 Was: Now: $7.69 Add to Cart Compare
Quick view Expert 20/75 Slab, 8"x3" Grodan Stonewool (rockwool) is made from molten rock spun into cotton candy-like fibers and then compressed into cubes, blocks, or slabs. Where other rockwool brand manufacturers cut all sizes from... MSRP: $10.06 Was: Now: $9.29 Add to Cart Compare
Quick view Grodan Delta 5.6 - 3 in Block 3 in x 3 in x 4 in w/ Hole Gro-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... MSRP: $8.30 Was: Now: $7.59 Add to Cart Compare
Quick view Grodan Macro Plug Round w/ Slit (50/Bag) Macroplugs are 1.5 in round with a slit that allows easy insertion of a cutting. These loose round plugs fit perfectly into the Gro-Block hole. For best results with these Macroplugs always insert... MSRP: $11.05 Was: Now: $9.99 Add to Cart Compare
