Grodan Expert 15/100 6"x4"x36" Slab Case of 9 6 x 4 x 36 inch rockwool slab. Growing Slabs are a great choice for vegetable crops or almost any plant that needs extra support at the base. Slabs come wrapped in U.V. resistant plastic that makes a good container for the roots to thrive. A 3 foot slab c... More Details
Price: $60.83

Grodan Expert 15/75 6"x3"x36" Slab Case of 12 6 x 3 x 36 inch rockwool slab. Growing Slabs are a great choice for vegetable crops or almost any plant that needs extra support at the base. Slabs come wrapped in U.V. resistant plastic that makes a good container for the roots to thrive. A 3 foot slab c... More Details
Price: $60.84

Grodan Expert 20/75 8"x3"x36" Slab Case of 12 8 x 3 x 36 inch rockwool slab, most popular size. Growing Slabs are a great choice for vegetable crops or almost any plant that needs extra support at the base. Slabs come wrapped in U.V. resistant plastic that makes a good container for the roots to thri... More Details
Price: $78.99

Grodan Classic 30/75 12"x3x36" Slab Case of 8 12 x 3 x 36 inch rockwool slab. Growing Slabs are a great choice for vegetable crops or almost any plant that needs extra support at the base. Slabs come wrapped in U.V. resistant plastic that makes a good container for the roots to thrive. A 3 foot slab ... More Details
Price: $79.39

Growcubes 1 Cubic Foot bag Case of 6 bags Grodan Mini Cubes -The product consists of small stonewool croutons about the size of a sugar cube. When you use this potting mix the miniature cubes stack on top of each other and air pockets are created throughout the pot. Growcubes are difficult to ove... More Details
Price: $102.86

Growcubes 2 Cubic Foot bag Case of 3 bags Grodan Mini Cubes -The product consists of small stonewool croutons about the size of a sugar cube. When you use this potting mix the miniature cubes stack on top of each other and air pockets are created throughout the pot. Growcubes are difficult to ove... More Details
Price: $83.29

Pargro Neptune Slab 15/75 -90, 36x6x3", case of 16 Pargro Neptune - Quality rockwool at a smart price A rockwool alternative at a smart price Uniform fiber structure ensures optimum nutrient and pH control Pargro blocks have air holes from top to bottom grooves to ensure good supply of oxygen a... More Details
Price: $52.00

Grodan Multiblocks AO 25/40 1"x1"x1.5", 200 Per Sheet, Case of 6000 Multiblocks are designed for cuttings or seed propagation and fit in the holes cut in the larger Rockwool cubes. The blocks come in sheets cut to fit in a standard 10'' x 20'' propagation tray. The blocks are tapered or V shaped to create an air space bel... More Details
Price: $279.31

Grodan Multiblocks AO 36/40 1.4"x1.4"x1.5", 98 Per Sheet, Case of 2940 Multiblocks are designed for cuttings or seed propagation and fit in the holes cut in the larger Rockwool cubes. The blocks come in sheets cut to fit in a standard 10 x 20 propagation tray. The blocks are tapered or V shaped to create an air space below t... More Details
Price: $253.02

Grodan Multiblocks AO 50/40 2"x2"x1.5", 50 Per Sheet, Case of 1500 Multiblocks are designed for cuttings or seed propagation and fit in the holes cut in the larger Rockwool cubes. The blocks come in sheets cut to fit in a standard 10'' x 20'' propagation tray. The blocks are tapered or V shaped to create an air space bel... More Details
Price: $220.16

Grodan Delta 10 Gro-Blocks 4x4x4 With Hole Case of 144 This is the most popular size rockwool cube. 4 x 4 x 4 inch Growing Blocks with holes for smaller cubes. Used as a second stage from smaller cubes. The 1-1/2 inch hole will accept the small cubes that come in a sheet or the wrapped cubes that come in a st... More Details
Price: $147.21

Grodan Delta 4 Gro-Blocks 3x3x2.5 With Hole Case of 384 3 x 3 x 3 inch Growing Blocks with holes for smaller cubes. Used as a second stage from smaller cubes. The 1-1/2 inch round hole will accept the small cubes that come in a sheet or the wrapped cubes that come in a strip. Growing blocks are great for ebb a... More Details
Price: $174.81

Grodan Delta 5.6 Gro-Blocks 3x3x4 With Hole Case of 256 3 x 3 x 4 inch Growing Blocks with holes for smaller cubes. Used as a second stage from smaller cubes. The 1-1/2 inch round hole will accept the small cubes that come in a sheet or the wrapped cubes that come in a strip. Growing blocks are great for ebb a... More Details
Price: $174.83

Grodan Delta 6.5 Gro-Blocks 4x4x2.5 With Hole Case of 216 4 x 4 x 2.5 inch Growing Blocks with holes for smaller cubes. Used as a second stage from smaller cubes. The 1-1/2 inch round hole will accept the small cubes that come in a sheet or the wrapped cubes that come in a strip. Growing blocks are great for ebb... More Details
Price: $136.10

Grodan Delta 8 Gro-Blocks 4x4x3 With Hole Case of 180 4 x 4 x 3 inch Growing Blocks with holes for smaller cubes. Used as a second stage from smaller cubes. The 1-1/2 inch round hole will accept the small cubes that come in a sheet or the wrapped cubes that come in a strip. Growing blocks are great for ebb a... More Details
Price: $157.15

Grodan Delta 4 Gro-Blocks 3x3x2.5 No hole Case of 384 3 x 3 x 3 inch Growing Blocks. Used as a second stage from smaller cubes. Growing blocks are great for ebb and flow hydroponic systems or for use as mid stage for plants eventually going on to Rockwool slabs. The blocks are individually wrapped in plastic... More Details
Price: $174.85

Grodan Delta 8 Gro-Blocks 4x4x3 No Hole Case of 180 4 x 4 x 3 inch Growing Blocks without holes. Used as a second stage from smaller cubes, just place the small cube on top. Growing blocks are great for ebb and flow hydroponic systems or for use as mid stage for plants eventually going on to Rockwool slabs... More Details
Price: $157.21

Grodan Hugo Gro-Blocks 6x6x5.5 Case of 48 The largest rockwool block. 6 x 6 x 6 inch Growing blocks with 1-1/2 inch hole for smaller cubes. Used for growing real big plants. These cubes work best with a drip system. In a flood system the top half can dry out quickly and lead to salt buildup so ri... More Details
Price: $114.11

Grodan Miniblocks Delta 40/40 1.5"x1.5"x1.5", 15 Per Strip, Case of 2250 These cubes measure 1.5" x 1.5" x 1.5" and work very well for seedling and cutting propagation. Each cube is wrapped in plastic on four sides to help hold in moisture. To root cuttings, use the 10 x 20 inch tray, insert and dome. The cubes fit in the 10 x... More Details
Price: $289.25

Grodan Miniblocks Delta 50/40, 2"x2"x1.5", 12 Per Strip, Case of 1440 These cubes measure 2" x 2" x 1.5" and work very well for seedling and cutting propagation. Each cube is wrapped in plastic on four sides to help hold in moisture. To root cuttings, use the 10 x 20 inch tray, insert and dome. The cubes fit in the 10 x 20 ... More Details
Price: $259.00

Grodan Water repellent (WR-20) 3.5 cubic feet (compressed) 45 lbs AgroDynamics Granulate Granulated rockwool can be used alone or as an amendment to organic based mixes. For example, the addition of water absorbant granulate to peat mixes at 25-50% volume, increases water holding capacity and aeration, improving plant g... More Details
Price: $73.02

Grodan Water absorbent (WA-20) 3.5 cubic feet (compressed) 45 lbs AgroDynamics Granulate Granulated rockwool can be used alone or as an amendment to organic based mixes. For example, the addition of water absorbant granulate to peat mixes at 25-50% volume, increases water holding capacity and aeration, improving plant g... More Details
Price: $66.97

Cultilene Growing Slab 36x6x3 (8/cs) Cultilene is one of the world's leading substrate producers. They have a great reputation in the industry as a company that puts the grower first. All products feature: - An effective air-to-water ratio - Reliable homogeneity - Great strength and dime... More Details
Price: $28.75

Cultilene Growing Slab 36x12x3 (4/cs) Cultilene is one of the world's leading substrate producers. They have a great reputation in the industry as a company that puts the grower first. All products feature: - An effective air-to-water ratio - Reliable homogeneity - Great strength and dime... More Details
Price: $37.13

Cultilene Starter Plug Sheet (1372/cs - 98/sheet) Cultilene is one of the world's leading substrate producers. They have a great reputation in the industry as a company that puts the grower first. All products feature: - An effective air-to-water ratio - Reliable homogeneity - Great strength and dime... More Details
Price: $98.13

Cultilene Growing Slab 36x8x3 (6/cs) Cultilene is one of the world's leading substrate producers. They have a great reputation in the industry as a company that puts the grower first. All products feature: - An effective air-to-water ratio - Reliable homogeneity - Great strength and dime... More Details
Price: $28.75