RedRock Starter Block PRO, 4" x 4" x 4" (Case of 144) spl_hf Energy efficient: To replace T5

Energy efficient: To replace T5 54W fluorescent HO lamps

schools and other such areas

Fire Point ASTM D92 70°C

Weight 40 lbs

RedRock Starter Block PRO, 4" x 4" x 4" (Case of 144) spl_hf Energy efficient: To replace T5RedRock Starter Block PRO, 4" x 4" x 4" (Case of 144) Dimensions: 42 40 Hole 10x10x10cm 4 Inch x 4 Inch x 4 Inch Commercial grade stone wool pro starter blocks sourced and manufactured in North America. Our Stone wool is made in the USA 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 back Our stone wool starter blocks