RedRock Starter Block PRO, 4" x 4" x 2.5" (Case of 216) Air Filter and hose clamps

and hose clamps

Waste Disposal:

• Best single part nutrient on the market

and 730nm far red IR spectrum

resistant to wear-and-tear

RedRock Starter Block PRO, 4" x 4" x 2.5" (Case of 216) Air Filter and hose clampsRedRock 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