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anytime to measure critical parameters related to nutrient uptake in plants
Ideal for air movement from an air pump to air stones
For best results
Measures 20 in x 18 in x 2 in
Successful calibration indicator is displayed on screen for 30 days to indicate when re-calibration is required
Grodan Delta 4 Block 3 in x 3 in x 2.5 in w/ Hole (48/Cs) anytime to measure critical parametersGro Blocks are similar to a plant container. Need a 3 in pot? Then choose a 3 in Gro Block. Small plants can be fully grown in our larger Gro Blocks. Holes are perfect size for any 1. 5 in starter plug. Come in packs labeled with instructions. Big Mama is Grodan's largest block ever produced! Big enough to grow a large plant for its entire life. More than twice the amount of wool as our Hugo Block.
US$ 15.00
US$ 300.00
US$ 15.00
US$ 475.00
