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Stonewool & Rockwool
Stonewool & Rockwool

The use of stone wool substrate offers many advantages. Thanks to the controlled manufacturing process, this growth medium is of a consistently high quality. The sterile production under extreme temperature ensures that the product is clean and sterile. Its unique hydrophilic fibre also makes the cultivation on stone wool substrate very easy to control. The grower can administer the amount of water and nutrients the crops need in a very directed and controlled manner, to achieve optimal growing results.

CUBECAP 6IN
The CubeCap enables you to naturally and efficiently minimize Algae, Fungus Gnats and their root eating Larva found on Rockwool and Coco growing blocks.

Price: $1.95
Sale: $1.75
Qty:
UNI-SLAB 9.5 in. X 8 in. X 4 in.
The Uni-Slab combines all the benefits of Grodan’s traditional slabs with the versatility of a block.
Price: $5.35
Sale: $4.82
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Delta Slab 36 in. x 8 in. x 3 in. (Rockwool / Stonewool) Grodan
Grodan Stonewool is a proven hydroponics growing medium preferred by garden enthusiasts everywhere. This 36 in. x 8 in. x 3 in. Delta Slab is pe...
Price: $10.25
Sale: $9.22
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A'Ok Starter Plugs - 1.5 in. sq. Sheet of 98 starter cubes - Grodan Stonewool
Made in Denmark since 1969, horticultural stonewool is widely recognized as an ideal growing substrate. Each Grodan A'Ok Starter Plug has a pre-formed...
Price: $13.30
Sale: $11.97
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Mini-Blocks - 1.5 in. sq.- (45) wrapped mini blocks (Rockwool / Stonewool) Grodan
Three strips of 15 wrapped Mini-Blocks - 45 total blocks each measuring 1.5 in. square.
Price: $8.50
Sale: $7.65
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Gro-Blocks - 2 in. x 2 in. x 2 in. 24 wrapped mini blocks - MM50/40 Grodan
Stonewool is a state-of-the-art growing substrate preferred by hundreds of hydroponics gardeners. Seeds or cuttings are started in these Grodan Mini-B...
Price: $6.25
Sale: $5.62
Qty:
Grodan Stonewool Block 3 in. x 3 in. x 2.5 in. (8ea) - No Hole
Stonewool is recognized the world over as the ideal hydroponics growing substrate. Seeds or cuttings are started in these Grodan Gro-Blocks and, once ...
Price: $4.75
Sale: $4.28
Qty:
Gro-Blocks - 3 in. x 3 in. x 2.5 in. 8 Wrapped Blocks - DM4 (Rockwool / Stonewool) Grodan
This is a strip of eight 3 in. x 3 in. x 2.5 in. Gro-Blocks, each with pre-formed holes.
Price: $5.25
Sale: $4.72
Qty:
Grodan Stonewool Gro-Blocks (8ea) 3 in. x 3 in. x 4 in.
Stonewool is recognized the world over as an ideal hydroponics growing medium. Seeds or cuttings are started in these larger Grodan Gro-Blocks and, on...
Price: $7.95
Sale: $7.16
Qty:
Gro-Blocks - 4 in. x 4 in. x 3 in. DM8 (Rockwool / Stonewool) Grodan
This is a strip of six 4 in. x4 in. x 3 in. Gro-Blocks, each with pre-formed holes.
Price: $7.25
Sale: $6.53
Qty:
Gro-Blocks 4 in. x 4 in. x 3 in. DU8 (Stonewool / Rockwool) Grodan
Known for its quality, consistency and ease of use, high-performance Grodan stonewool is used by hydroponics gardeners the world over. Seeds or cuttin...
Price: $6.00
Sale: $5.40
Qty:
Delta Slab 36 in. x 6 in. x 3 in. (Rockwool / Stonewool) Grodan
Stonewool is recognized the world over as a dependable hydroponics growing medium and Grodan stonewool in particular is known for its quality, consist...
Price: $8.15
Sale: $7.33
Qty:
Delta Slab 6 in. X 4 in. X 36 in. SLAB (Rockwool / Stonewool) Grodan
Grodan Stonewool is a proven hydroponics growing medium preferred by garden enthusiasts everywhere. This 36 in. x 6 in. x 4 in. Delta Slab is pe...
Price: $9.95
Sale: $8.96
Qty:
Europonic Rockwool Conditioner Qt.
Europonic Rockwool Conditioner is a pre-conditioner that adjusts and stabilizes rockwool for maximum nutrient uptake.
Price: $15.95
Sale: $14.36
Qty:
Europonic Rockwool Conditioner Gal.
Europonic Rockwool Conditioner Gal.Europonic Rockwool Conditioner is a pre-conditioner that adjusts and stabilizes rockwool for maximum nutrient uptak...
Price: $34.95
Sale: $31.45
Qty:
BIG MAMA 8 in. X 8 in. X 8 in.
The largest block ever produced by Grodan, the Big Mama™ measures 8 in. x 8 in. x 8 in. and contains well over twice as much wool as the popular Hugo block.
Price: $7.75
Sale: $6.97
Qty:
Growcubes 23 gal Bag. Grodan Stonewool
Easy to use and environmentally friendly, Grodan growcubes provide plant roots with a stable foundation and an excellent balance of air and water.
Price: $43.00
Sale: $38.70
Qty:
Block Covers 4.5 in. Covers (40ea) Sunleaves
Dual-purpose Sunleaves Block Covers reflect light back towards plants in addition to protecting them from algae growth. Black on one side, white on th...
Price: $5.95
Sale: $5.36
Qty:
GRODAN MACRO PLUG 1.5IN.

Perfect for rooted cuttings. Same great product with new packaging. Now 50 Macro Plugs in gold foil bag that can be hung up.

Price: $10.75
Sale: $9.68
Qty:
CUBECAP 4IN
The Cube Cap enables you to naturally and efficiently eliminate algae, fungus gnats and their root eating larva found on rock wool and coco growing blocks.
Price: $1.19
Sale: $1.07
Qty:

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