4 Inch Redrock Rockwool PRO Grow Block for Hydroponics | 6 Pack + Twin Canaries Chart
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RedRock rockwool grow blocks are made in the USA
RedRock rockwool grow blocks PRO are priced for commercial agriculture production
Rockwool has high fiber density makes better use of water and fertilizers while allowing dry back
RedRock rockwool grow blocks are made in the USA
RedRock rockwool grow blocks PRO are priced for commercial agriculture production
Rockwool has high fiber density makes better use of water and fertilizers while allowing dry back
Each block measures 4 inch x 4 inch x 4 inch with 42/40 Hole
Each order comes with a Twin Canaries Chart
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