Grodan Expert 20/75 Slab, 36″ x 8″ x 3″, case of 12 (RW2075)

Grodan Expert 20/75 Slab, 36" x 8" x 3", case of 12 RW2075

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 one batch of wool, Grodan is unique by making different types of fibers. The purpose is to support the requirement of the plant in the different plant stages. Grodan has a tremendous capacity for absorbing nutrient solution while retaining plenty of oxygen for rapid plant growth. Grodan comes in graduated sizes. Seedlings started in cubes are easily transferred to blocks and then onto slabs, if desired. Seedlings or cuttings started in the Grodan cubes can also be transplanted into more traditional planters and growing mediums.

Grodan Slabs – The final stage of planting with growing blocks are the Grodan slabs. These slabs come in clearly marked UV resistant poly sleeves for ease of use. Recommended for larger, long term crops with extensive roots like peppers, tomatoes, or cucumbers. Typically, seedlings in blocks are placed onto slabs. Grodan Expert is the slab that drains the fastest because of its vertical fibers. By far the most popular slab for the hydroponic hobbyist market. Grodan Master is a special wet/dry slab. The top layer is thicker, which stays wetter, while the bottom layer stays drier. In effect it defies gravity, allowing more even distribution of moisture throughout the slab.

 

Grodan Expert 15/75 Slab, 36″ x 6″ x 3″, case of 12 (RW157512)

Grodan Expert 15/75 Slab, 36" x 6" x 3", case of 12 RW157512

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 one batch of wool, Grodan is unique by making different types of fibers. The purpose is to support the requirement of the plant in the different plant stages. Grodan has a tremendous capacity for absorbing nutrient solution while retaining plenty of oxygen for rapid plant growth. Grodan comes in graduated sizes. Seedlings started in cubes are easily transferred to blocks and then onto slabs, if desired. Seedlings or cuttings started in the Grodan cubes can also be transplanted into more traditional planters and growing mediums.

Grodan Slabs – The final stage of planting with growing blocks are the Grodan slabs. These slabs come in clearly marked UV resistant poly sleeves for ease of use. Recommended for larger, long term crops with extensive roots like peppers, tomatoes, or cucumbers. Typically, seedlings in blocks are placed onto slabs. Grodan Expert is the slab that drains the fastest because of its vertical fibers. By far the most popular slab for the hydroponic hobbyist market. Grodan Master is a special wet/dry slab. The top layer is thicker, which stays wetter, while the bottom layer stays drier. In effect it defies gravity, allowing more even distribution of moisture throughout the slab.

Grodan Expert Slab 15/75, 40″ x 6″ x 3″, case of 12 (RW157240)

Grodan Expert Slab 15/75, 40" x 6" x 3", case of 12 RW157240

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 one batch of wool, Grodan is unique by making different types of fibers. The purpose is to support the requirement of the plant in the different plant stages. Grodan has a tremendous capacity for absorbing nutrient solution while retaining plenty of oxygen for rapid plant growth. Grodan comes in graduated sizes. Seedlings started in cubes are easily transferred to blocks and then onto slabs, if desired. Seedlings or cuttings started in the Grodan cubes can also be transplanted into more traditional planters and growing mediums.

Grodan Slabs – The final stage of planting with growing blocks are the Grodan slabs. These slabs come in clearly marked UV resistant poly sleeves for ease of use. Recommended for larger, long term crops with extensive roots like peppers, tomatoes, or cucumbers. Typically, seedlings in blocks are placed onto slabs. Grodan Expert is the slab that drains the fastest because of its vertical fibers. By far the most popular slab for the hydroponic hobbyist market. Grodan Master is a special wet/dry slab. The top layer is thicker, which stays wetter, while the bottom layer stays drier. In effect it defies gravity, allowing more even distribution of moisture throughout the slab.

Grodan Expert 15/100 Slab, 36″ x 6″ x 4″, case of 12 (RW15100)

Grodan Expert 15/100 Slab, 36" x 6" x 4", case of 12 RW15100

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 rockwool brand manufacturers cut all sizes from one batch of wool, Grodan is unique by making different types of fibers. The purpose is to support the requirement of the plant in the different plant stages. Grodan has a tremendous capacity for absorbing nutrient solution while retaining plenty of oxygen for rapid plant growth. Grodan comes in graduated sizes. Seedlings started in cubes are easily transferred to blocks and then onto slabs, if desired. Seedlings or cuttings started in the Grodan cubes can also be transplanted into more traditional planters and growing mediums.

Grodan Slabs – The final stage of planting with growing blocks are the Grodan slabs. These slabs come in clearly marked UV resistant poly sleeves for ease of use. Recommended for larger, long term crops with extensive roots like peppers, tomatoes, or cucumbers. Typically, seedlings in blocks are placed onto slabs. Grodan Expert is the slab that drains the fastest because of its vertical fibers. By far the most popular slab for the hydroponic hobbyist market. Grodan Master is a special wet/dry slab. The top layer is thicker, which stays wetter, while the bottom layer stays drier. In effect it defies gravity, allowing more even distribution of moisture throughout the slab.

 

Grodan Expert Slab 20/75 8 in x 3 in x 36 in (CLOSEOUT – west coast only) (713010)

Grodan Expert Slab 20/75 8 in x 3 in x 36 in (CLOSEOUT - west coast only) 713010

Gro-Slabs provide the final stage for growing a spectacularly large plant. Transplant your Gro-Block plant onto a slab just like professional growers. They come in clearly marked biodegradable UV-resistant sleeves for comfortable handling and algae prevention. With the Uni-Slab, all plant roots are protected and contained for the life of the plant. Due to its size, the Uni-Slab is perfect for one large plant. Uni-Slab has the benefits of a slab with the versatility of a block. All Gro-Slabs have vertical fibers except the 12 in Gro-Slab, which has horizontal fibers.

Grodan Expert Slab 15/75 6 in x 3 in x 36 in [Ships To Eastern States Only] *CLOSEOUT* (713005)

Grodan Expert Slab 15/75 6 in x 3 in x 36 in  [Ships To Eastern States Only] *CLOSEOUT* 713005

Grodan® Stonewool Gro-Slabs

Gro-Slabs™ provide the final stage for growing a spectacularly large plant. Transplant your Gro-Block™ plant onto a slab just like professional growers. They come in clearly marked biodegradable UV-resistant sleeves for comfortable handling and algae prevention. With the Uni-Slab, all plant roots are protected and contained for the life of the plant. Due to its size, the Uni-Slab is perfect for one large plant. Uni-Slab has the benefits of a slab with the versatility of a block. All Gro-Slabs have vertical fibers except the 12 in Gro-Slab, which has horizontal fibers.

Grodan Expert Fat Slabs 15/100 6 in x 4 in x 36 in *CLOSEOUT* (713001)

Grodan Expert Fat Slabs 15/100 6 in x 4 in x 36 in  *CLOSEOUT* 713001

Grodan® Stonewool Gro-Slabs

Gro-Slabs™ provide the final stage for growing a spectacularly large plant. Transplant your Gro-Block™ plant onto a slab just like professional growers. They come in clearly marked biodegradable UV-resistant sleeves for comfortable handling and algae prevention. With the Uni-Slab, all plant roots are protected and contained for the life of the plant. Due to its size, the Uni-Slab is perfect for one large plant. Uni-Slab has the benefits of a slab with the versatility of a block. All Gro-Slabs have vertical fibers except the 12 in Gro-Slab, which has horizontal fibers.

Grodan 1.5” AO pre-cut loose in box, case of 2,310 (RW343295)

Grodan 1.5” AO pre-cut loose in box, case of 2,310 RW343295

Grodan® Stonewool A-OK Starter Plugs™ Loose in Carton

A- OK Starter Plugs™ for starting seeds and rooting of cuttings prior to plugging into the larger Grodan Gro-Blocks. A-OK Starter Plugs™ come loose in a carton for those who prefer to saturate as individual plugs. Easy to use with propagation trays such as the Grow Smart Tray. Note: the AOK plugs are shipped as individual loose plugs, bulk in the carton. There is no shrink-wrap.

Grodan 1.5” AO prefilled tray, case of 1,500 (RW338009)

Grodan 1.5” AO prefilled tray, case of 1,500 RW338009

Grodan® Stonewool A-OK Starter Plugs ™ in Prefilled tray

The Grodan tray comes prefilled with Grodan A-OK Starter Plugs™ for fast and easy propagation from seeds or cuttings prior to transplanting to Grodan Gro-Blocks. The tray fits perfectly in all standard propagation dome kits. These trays are designed with a unique and convenient thumb slot to make tray removal easy and comfortable.

Grodan GR-Unislab, 9.4 x 7.6 x 3.9 with 4″x4″ hole, case of 16 (RW342680)

Grodan GR-Unislab, 9.4 x 7.6 x 3.9 with 4"x4" hole, case of 16 RW342680

Grodan Improved Pre-Cut Uni-Slabs offer a wide control range to steer your crop using irrigation strategies with the added convenience of pre-cut plant holes for easy transplanting of 4” Grodan Gro-Blocks. Featuring the Advanced Wetting Agent, Pre-cut Uni-slabs offer more uniform WC and EC distribution throughout each slab and from slab to slab. Fast rooting and vigorous growth throughout the entire growing
cycle results in improved cannabis plant health, better resilience and higher yields. The improved slab structure and physical properties guarantee rapid resaturation within a wide steering range.

Application
Grodan Improved Pre-cut Uni-Slabs are extremely versatile and lend themselves perfectly to the cultivation of cannabis. Blooming plants will show fast growth, uniform stem development and early setting.

Product Features

  • Pre-cut plant holes for faster, easier transplanting of rooted Grodan Gro-Blocks on to the Grodan Improved Uni-Slabs
  • Single plant system
  • Inert hydrophilic fibre technology
  • High resaturation capacity
  • Uniform water distribution throughout the Grodan Improved Pre-cut Uni-Slabs