RedRock Starter Block PRO, 4" x 4" x 2.5" (Case of 216) rock-bottom highly porous

highly porous

Made from FDA Prime Grade Extra Strength Polypropylene (#5 BPA free) plastic

500 packs does not include overwrap or Humidity Indicator Cards (HIC)

horticultural oils and yellow sticky traps

RedRock Starter Block PRO, 4" x 4" x 2.5" (Case of 216) rock-bottom highly porousRedRock Starter Block PRO, 4" x 4" x 2. 5" (Case of 216) 42 40 Hole 10x10x6. 5cm 4 Inch x 4 Inch x 2. 5 Inch Commercial grade stone wool pro starter blocks sourced and manufactured in North America. Our Stone wool starter blocks are made in the USA and processed in Canada Wetting agent ensures nutrients are immediately plant available The high fiber density of the stone wool starter blocks makes better use of water and fertilizers while allowing dry