VidaWool Rockwool HC Thick Slab with Hole, 4" (H) x 6" (W) x 36" (L) - Case of 12 Select Rockwool Type:HC Thick Slab with Hole, 4" (H) x 6" (W) x 36" (L) - Case of 12 Widest Operating Range: Of temperature

Widest Operating Range: Of temperature and relative humidity

If you are using accessories such as basket drippers and air stones use (ID) 3/16'' instead of (ID) 1/4''

Widest Flow Path – Ultimate Clog Resistance

when applied at a high dosage to young or weak plants

Also fits competitors’ trays

VidaWool Rockwool HC Thick Slab with Hole, 4" (H) x 6" (W) x 36" (L) - Case of 12 Select Rockwool Type:HC Thick Slab with Hole, 4" (H) x 6" (W) x 36" (L) - Case of 12 Widest Operating Range: Of temperatureVidaWool Slabs VidaWool Slabs provide support for the remainder of the production cycle, giving your plants ample room to flourish. Plant spacing and placement are critical at this stage, when crowding can result in less than optimal crop development. VidaWool slabs make it simple to quickly and accurately transplant blocks and keep plants developing all the way to harvest while minimizing the time and effort spent setting up the room. Applications