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Rockwool / Stonewool 4 Inch Gro Blocks – 6 Pack
Original price was: $13.05.$8.49Current price is: $8.49.
Rockwool / Stonewool 8 Inch Big Mama Block
Original price was: $10.89.$10.03Current price is: $10.03.
RedRock Stonewool Grow Block with Hole – 6″ x 6″ x 6″ Case of 48
Original price was: $149.95.$129.95Current price is: $129.95.
Grodan Rockwool / Stonewool 3″ x 3″ x 4″ Gro Blocks – 8 Pack
Original price was: $11.53.$6.49Current price is: $6.49.
Grodan Improved 4 Inch Gro-Block Rockwool Cubes – Case of 216 (Unwrapped)
Original price was: $198.05.$138.75Current price is: $138.75.
Grodan Rockwool / Stonewool 4 Inch Gro Blocks (Unwrapped) – Case of 144
Original price was: $214.67.$204.45Current price is: $204.45.
Grodan Improved 4 Inch Gro-Block Rockwool Cubes – Case of 216
Original price was: $301.61.$135.81Current price is: $135.81.
Cultiwool 6 Inch Blocks | Bulk Pallet – 768 Pcs.
Original price was: $2,403.84.$2,043.26Current price is: $2,043.26.
Grodan Pargro QD Biggie Block with Hole, 6″ x 6″ x 6″ – Case of 64
Original price was: $352.06.$281.65Current price is: $281.65.
Grodan Rockwool / Stonewool 4 Inch Gro-Blocks – Case of 144
Original price was: $328.70.$313.05Current price is: $313.05.
Grodan Gro-Block Improved GR5.6 Large with Hole 3″ x 3″ x 4″ – Case of 256
Original price was: $368.95.$289.95Current price is: $289.95.About Rockwool Cubes | Blocks
Grodan Rockwool cubes are excellent for drip irrigation and transplanting other Grodan products. Made from spun basalt rock fibers that are then formed into slabs or cubes, rockwool is a popular growing substrate for hydroponic gardening. Rockwool, also known as stonewool, is perfect for seed starting, ebb and flow systems, and drip irrigation hydroponic systems due to its inert properties and the fact that it does not absorb water, leaving it available to the plants for growth and development.
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