Grodan Pargro Quick Drain Biggie Block 6 by 6 by 6 Inch with Hole Case of 64

- Made at the Grodan factories. The wool used in GRODAN is configured specifically with Delta Technology - Plain brown half case sizes - Better quality and drainage than other value-priced Rockwool - Resting saturation measurements taken from QD slabs vs. Neptune slabs. Pargro QD was 10% drier than Neptune slabs - Plain brown half case sizes. Better quality and drainage than other value-priced rockwool.