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    Grodan Stonewool Delta Blocks 4L x 4W x 4H Inches - Case of 144

    Grodan Stonewool Delta Blocks 4L x 4W x 4H Inches - Case of 144

    Multi-fiber rockwool for excellent growing. Supports plants through all growth stages. Absorbs nutrients and retains oxygen. Improved grooves at bottom for better drainage. Manufacturer's warranty included. Additional features:Easily transport plants... more

    $236.60

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    Grodan A Ok Stonewool Cubes 1.5L x 1.5W x 1.5H Inches - 30 Sheets of 98

    Grodan A Ok Stonewool Cubes 1.5L x 1.5W x 1.5H Inches - 30 Sheets of 98

    Rockwool made from many fibers. Supports plants through all growth stages. Absorbs nutrients and retains oxygen. Easily transplant from cubes to traditional planters. Manufacturer's warranty included. This growing medium is an excellent choice for... more

    $347.99 $299.97

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    Best Seller
    Delta 4 Block - 3 x 3 x 2.5 in. without Hole - Case of 384

    Delta 4 Block - 3 x 3 x 2.5 in. without Hole - Case of 384

    Made from molten rock spun into cotton candy. Supports the requirement of the plant in various stages. Seedlings can be transplanted into growing medium. Improved grooves at the base to promote better drainage. Includes 4 blocks per strip with 96... more

    $238.99

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    Grodan Classic Slab 30/75 12 in x 3 in x 36 in

    Grodan Classic Slab 30/75 12 in x 3 in x 36 in

    Grodan Classic Slab 30/75 12 in x 3 in x 36 inGro-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... more

    $137.54

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    A-OK 1"x1" Sheet of 200 Rockwool / Stonewool Starter Cubes for Cuttings, Cloning, Plant Propagation, and Seed Starting, Root Cuttings, Clone Plants,.., By Grodan

    A-OK 1"x1" Sheet of 200 Rockwool / Stonewool Starter Cubes for Cuttings, Cloning, Plant Propagation, and Seed Starting, Root Cuttings, Clone Plants,.., By Grodan

    Perfectly-sized to fit a standard flat growing tray Root Cuttings, Clone Plants, Start Seeds and more! Predrilled planting holes make seeding and plant propagation a breeze! Includes 200 individual rockwool / stonewool grow cubes Packaged in bulk to... more

    $19.59

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    "A-ok Starter Plugs 1.5"" X 1.5"" Sheet of 98 Stonewool Cubes, Grodan A-ok Starter Plugs 1.5 X 1.5 Sheet of 98 Stonewool Cubes By Grodan"

    "A-ok Starter Plugs 1.5"" X 1.5"" Sheet of 98 Stonewool Cubes, Grodan A-ok Starter Plugs 1.5 X 1.5 Sheet of 98 Stonewool Cubes By Grodan"

    "Main products of our company :electric, home,toy,clother ,etc. Since its foundation ,the company keeps living up to the belief of :""honest selling ,best quality ,people-orientation and benefits to customers. ""We are doing everything to offer our... more

    $17.59

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    Grodan A Ok Stonewool Cubes 1.5L x 1.5W x 1.5H Inches - 30 Sheets of 98

    Grodan A Ok Stonewool Cubes 1.5L x 1.5W x 1.5H Inches - 30 Sheets of 98

    This growing medium is an excellent choice for absorbing nutrients and supporting growth in all of a plant's stages. The Grodan A Ok Stonewool Cubes is a multi-fiber rockwool that is compressed into cubes, blocks and slabs. This rockwool comes in... more

    $299.97

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    MM 50/40 6/15 Block - 2 x 2 x 1.5 in. - 60 Strips of 24

    MM 50/40 6/15 Block - 2 x 2 x 1.5 in. - 60 Strips of 24

    About Hydrofarm, Inc. Celebrated as the nation's oldest and largest manufacturer of hydroponic equipment and grow lights, Hydrofarm has made professional-grade equipment available to all since 1977. All grow lights and electric components are UL... more

    $286.99

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    Grodan Stonewool Delta Blocks 4L x 4W x 4H Inches - Case of 144

    Grodan Stonewool Delta Blocks 4L x 4W x 4H Inches - Case of 144

    Additional features: Easily transport plants to more traditional growing mediaAO 36/40 plugs fit well into holes provided In terms of nutrient absorption and oxygen retention, the Grodan Stonewool Delta Blocks cannot be beat. These growing blocks are... more

    $236.60

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    MM 50/40 6/15 Block - 2 x 2 x 1.5 in. - 60 Strips of 24

    MM 50/40 6/15 Block - 2 x 2 x 1.5 in. - 60 Strips of 24

    Made from molten rock spun into cotton candy. Supports the requirement of the plant in various stages. Seedlings can be transplanted into growing medium. Improved grooves at the base to promote better drainage. Includes 60 strips. Provides enough... more

    $300.99 $286.99

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    Classic 30/75 Slab - Wet - 12 x 3 in.

    Classic 30/75 Slab - Wet - 12 x 3 in.

    Made from molten rock spun into cotton candySupports the requirement of the plant in various stagesAbsorbs nutrient solution and retains oxygen for growthSeedlings can be transplanted into growing mediumComes in clearly marked UV resistantRecommended... more

    $184.99 $73.44

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    AO 25/40 10/10 Cubes - 1 x 1 in. - 30 Sheets of 200

    AO 25/40 10/10 Cubes - 1 x 1 in. - 30 Sheets of 200

    Improved homogeneity. Optimum robustness and flexibility. Ideal air/water balance. Consistent shape of the seed hole. Identically shaped plugs. Root development through the entire plug. Measures 24.1L x 20.4W x 20.6H in.. About Hydrofarm,... more

    $359.99 $339.99

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    Grodan Mini Cubes

    Grodan Mini Cubes

    Made from molten rock spun into cotton candy. Supports the requirement of the plant in various stages. Absorbs nutrient solution and retains oxygen for growth. Seedlings can be transplanted into growing medium. Grow cubes are great alternative to... more

    $197.99 $92.35

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    MM 40/40 6/15 Block - 5 x 1.5 x 1.5 in. - 150 Strips of 15

    MM 40/40 6/15 Block - 5 x 1.5 x 1.5 in. - 150 Strips of 15

    Made from molten rock spun into cotton candy. Supports the requirement of the plant in various stages. Seedlings can be transplanted into growing medium. Improved grooves at the base to promote better drainage. Includes 15 blocks and 150 strips.... more

    $359.20

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    "1.5"" x 1.5"" x 1.5"" Mini Blocks Grow Media Rockwool Stonewool Cube Propagation + Twin Canaries Chart - 15 Cubes By Grodan"

    "1.5"" x 1.5"" x 1.5"" Mini Blocks Grow Media Rockwool Stonewool Cube Propagation + Twin Canaries Chart - 15 Cubes By Grodan"

    "Please contact us if you have any question about this item. We will try our best to solve your problem. A'OK plugs are designed for seed and cutting propagation prior to ""blocking on"" into larger growing blocks. The V-shape design of the plug... more

    $10.29

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    Hydrofarm Delta 10G Rockwool Block 4x4x4 6 Blocks Per Strip By Grodan

    Hydrofarm Delta 10G Rockwool Block 4x4x4 6 Blocks Per Strip By Grodan

    "Please contact us if you have any question about this item. We will try our best to solve your problem. Made in Denmark since 1969, stonewool is known the world over for its quality, consistency, ease of use and performance. Seeds or cuttings are... more

    $16.59

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    Grodan Classic Slab 30/75 12 in x 3 in x 36 in

    Grodan Classic Slab 30/75 12 in x 3 in x 36 in

    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... more

    $117.59

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    Grodan Stonewool Grow Chunks 2 cu ft

    Grodan Stonewool Grow Chunks 2 cu ft

    Light, airy & versatile. Grow-Chunks are about 3/4 inch square each and can be used in pots around blocks or alone. They are easily combined with other media, such as layering with coco fiber or clay pellets. They can also be combined with soil for... more

    $121.79

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    Grodan A-OK 25/40 - 1 in x 1 in Plugs (200/Sheet)

    Grodan A-OK 25/40 - 1 in x 1 in Plugs (200/Sheet)

    A-OK Starter Plugs for starting seeds and rooting of cuttings prior to plugging into the larger Gro-Blocks. A-OK Starter Plugs come labeled with instructions in a shrink-wrapped sheet that fits a standard 10 x 20 tray (flat). Note: Item #713020 is... more

    $396.89

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    Grodan Expert Slab 15/75 6 in x 3 in x 36 in

    Grodan Expert Slab 15/75 6 in x 3 in x 36 in

    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... more

    $91.34

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    "1.5"" Macro Plugs - Pack of 50 Rockwool Stonewool Plugs for Seed Starting, Plant Propagation & Cloning Cuttings By Grodan"

    "1.5"" Macro Plugs - Pack of 50 Rockwool Stonewool Plugs for Seed Starting, Plant Propagation & Cloning Cuttings By Grodan"

    "Please contact us if you have any question about this item. We will try our best to solve your problem. Stonewool Macroplugs are a sure bet for optimum germination. They start as basalt rock and chalk that is melted, spun into cotton candy-like... more

    $16.69

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

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

    Grodan Expert Fat Slabs 15/100 6 in x 4 in x 36 inGro-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... more

    $130.32

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    Grodan Expert Slab 20/75 8 in x 3 in x 36 in

    Grodan Expert Slab 20/75 8 in x 3 in x 36 in

    Grodan Expert Slab 20/75 8 in x 3 in x 36 inGro-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... more

    $126.47

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    "Grodan Hugo Rockwool Block 6"" x 6"" Singles"

    "Grodan Hugo Rockwool Block 6"" x 6"" Singles"

    "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... more

    $7.99

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    Grodan Delta 4 Rockwool Block 3 x 3 x 2.5 With Hole

    Grodan Delta 4 Rockwool Block 3 x 3 x 2.5 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 one batch of wool, Grodan is unique by making... more

    $9.99

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    Grodan A-OK Rockwool Starter Plugs Case of 30 Sheets of 50

    Grodan A-OK Rockwool Starter Plugs Case of 30 Sheets of 50

    "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... more

    $349.99

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    Grodan Delta 4 Rockwool Block 3 x 3 x 2.5 With Hole Case of 384

    Grodan Delta 4 Rockwool Block 3 x 3 x 2.5 With Hole Case of 384

    "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... more

    $249.99

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    Grodan Delta 6.5 Rockwool Block 4 x 4 x 2.5 With Hole Pack of 6

    Grodan Delta 6.5 Rockwool Block 4 x 4 x 2.5 With Hole Pack of 6

    "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... more

    $9.99

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    Grodan A-OK 36/40 1.5 in x 1.5 in Plugs (98/Sheet)

    Grodan A-OK 36/40 1.5 in x 1.5 in Plugs (98/Sheet)

    A-OK Starter Plugs for starting seeds and rooting of cuttings prior to plugging into the larger Gro-Blocks. A-OK Starter Plugs come labeled with instructions in a shrink-wrapped sheet that fits a standard 10 x 20 tray (flat). Note: Item #713020 is... more

    $359.09

    FREE shipping

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    Grodan Mini Cubes

    Grodan Mini Cubes

    Made from molten rock spun into cotton candy. Supports the requirement of the plant in various stages. Absorbs nutrient solution and retains oxygen for growth. Seedlings can be transplanted into growing medium. Grow cubes are great alternative to... more

    $92.35

    FREE shipping

    go to store
    Grodan A Ok Stonewool Cubes 1.5L x 1.5W x 1.5H Inches - 30 Sheets of 98

    Grodan A Ok Stonewool Cubes 1.5L x 1.5W x 1.5H Inches - 30 Sheets of 98

    Rockwool made from many fibers. Supports plants through all growth stages. Absorbs nutrients and retains oxygen. Easily transplant from cubes to traditional planters. Manufacturer's warranty included. This growing medium is an excellent choice for... more

    $299.97

    FREE shipping

    go to store
    Grodan A Ok Stonewool Cubes 1.5L x 1.5W x 1.5H Inches - 30 Sheets of 98

    Grodan A Ok Stonewool Cubes 1.5L x 1.5W x 1.5H Inches - 30 Sheets of 98

    Rockwool made from many fibers. Supports plants through all growth stages. Absorbs nutrients and retains oxygen. Easily transplant from cubes to traditional planters. Manufacturer's warranty included. This growing medium is an excellent choice for... more

    $299.97

    FREE shipping

    go to store
    Grodan Mini Cubes

    Grodan Mini Cubes

    Made from molten rock spun into cotton candy. Supports the requirement of the plant in various stages. Absorbs nutrient solution and retains oxygen for growth. Seedlings can be transplanted into growing medium. Grow cubes are great alternative to... more

    $92.35

    FREE shipping

    go to store
    MM 50/40 6/15 Block - 2 x 2 x 1.5 in. - 60 Strips of 24

    MM 50/40 6/15 Block - 2 x 2 x 1.5 in. - 60 Strips of 24

    Made from molten rock spun into cotton candy. Supports the requirement of the plant in various stages. Seedlings can be transplanted into growing medium. Improved grooves at the base to promote better drainage. Includes 60 strips. Provides enough... more

    $286.99

    FREE shipping

    go to store
    MM 50/40 6/15 Block - 2 x 2 x 1.5 in. - 60 Strips of 24

    MM 50/40 6/15 Block - 2 x 2 x 1.5 in. - 60 Strips of 24

    Made from molten rock spun into cotton candy. Supports the requirement of the plant in various stages. Seedlings can be transplanted into growing medium. Improved grooves at the base to promote better drainage. Includes 60 strips. Provides enough... more

    $286.99

    FREE shipping

    go to store
    Delta 8 Block - 4 x 4 x 3 in. with Hole - Case of 180

    Delta 8 Block - 4 x 4 x 3 in. with Hole - Case of 180

    Made from molten rock spun into cotton candy. Supports the requirement of the plant in various stages. Seedlings can be transplanted into growing medium. Improved grooves at the base to promote better drainage. Includes 8 blocks per strip with 22... more

    $215.99

    FREE shipping

    go to store
    Delta 4 Block - 3 x 3 x 2.5 in. without Hole - Case of 384

    Delta 4 Block - 3 x 3 x 2.5 in. without Hole - Case of 384

    About Hydrofarm, Inc. Celebrated as the nation's oldest and largest manufacturer of hydroponic equipment and grow lights, Hydrofarm has made professional-grade equipment available to all since 1977. All grow lights and electric components are UL... more

    $238.99

    FREE shipping

    go to store
    MM 40/40 6/15 Block - 5 x 1.5 x 1.5 in. - 150 Strips of 15

    MM 40/40 6/15 Block - 5 x 1.5 x 1.5 in. - 150 Strips of 15

    About Hydrofarm, Inc. Celebrated as the nation's oldest and largest manufacturer of hydroponic equipment and grow lights, Hydrofarm has made professional-grade equipment available to all since 1977. All grow lights and electric components are UL... more

    $359.20

    FREE shipping

    go to store
    "Grodan 1.5"" A-OK Rockwool Starter Plugs Case of 30 Sheets of 98"

    "Grodan 1.5"" A-OK Rockwool Starter Plugs Case of 30 Sheets of 98"

    "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... more

    $349.99

    FREE shipping

    go to store

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