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BIG MAMA 8 in. X 8 in. X 8 in. - Grodan
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. This block is big enough to grow a large plant for its entire life. When a plant outgrows its current block, gardeners ...
Price: $7.75
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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 the other, these block covers will work with any media, although they are designed for four-inch stonewool cubes. There are 40qty 4-1/2in covers in e...
Price: $5.95
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BLOCK CVRS 4 in. Qty. 40
Dual-purpose Sunleaves Block Covers reflect light back towards plants in addition to protecting them from algae growth. Black on one side, white on the other, these block covers will work with any media however they are designed for four-inch stonewool cubes. Qty. 40.
Price: $7.50
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BLOCK CVRS 6 in. Qty. 40
For Rock Wool & Other Grow Media
Blocks light from media reducing algae & pest problems
Use white side up to reflect light
Use toothpick to hold cover in place
Price: $13.95
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Granulate - 45 lb. Water Absorbent ( Rockwool / Stonewool ) Grodan
Grodan Water Absorbent Granules consist of premium horticultural stonewool with a reputation for quality and performance. Particularly practical in hanging baskets, gardeners can use Water Absorbent Granules as a stand alone medium or as an amendment to their favorite potting mix to improve the o...
Price: $64.95
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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 cuttings are started in these Grodan Gro-Blocks and, once rooted, the blocks are transferred to a larger stonewool slab. Gro-Blocks can also be planted d...
Price: $7.25
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GRODAN MACRO PLUG 1.5IN. 50 BAG
Stonewool Macro Plugs are a sure bet for optimum germination. They start as basalt rock and chalk that is melted, spun into cotton candy-like fibers, and finally compressed into plugs. Their fibrous structure creates an ideal air-to-water ratio which contributes to robust root development thro...
Price: $10.60
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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 rooted, the blocks are transferred to a larger stonewool slab. Gro-Blocks can be planted directly into containers for soil gardening as well. This ...
Price: $4.75
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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, once rooted, the blocks are transferred to a larger stonewool slab. Gro-Blocks can be planted directly into containers for soil gardening as well. Th...
Price: $7.95
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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."
Made in Denmark since 1969, stonewool is widely recognized as the ideal growing substrate. For any growing application, stone...
Price: $38.95
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Growcubes 3 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."
Made in Denmark since 1969, stonewool is widely recognized as the ideal growing substrate. For any growing application, stone...
Price: $6.95
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RW COCO CAP 6 in. 10 EA
The organic alternative to plastic covers for rockwool blocks. Use Coco Caps to help prevent light penetration that may cause algae growth.
Price: $4.95
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UNI-SLAB 9.5 in. X 8 in. X 4 in. - Grodan
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
Price: $5.35
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