Cultiwool 8" x 8" x 8" Blocks of Cultilene Rockwool - Case of 18

Description Efficient Cultiwool 8" x 8" x 8" Blocks: Cultiwool's unique growing blocks are efficient due to their consistency. These blocks are designed for swift and seamless uptake of water and homogeneous distribution of water throughout the substrate, critical characteristics of an effective growing medium. Superior Quality and Innovative Design: Not only is it sterling quality stone wool, but Cultiwool is also the first to introduce the 'donut ring' to the retail market for advancing water distribution. Its design features highly recognized cross grooves that aid in water flow beneath the block and a black/white foil to ward off algae growth. Enhanced Waterflow Design: Cultiwool substrate blocks come equipped with drain grooves at the bottom for improving water flow beneath the block. This feature is particularly useful when the substrate blocks are placed on cultivation tables or concrete floors. The reduced contact surface with the ground that these drain grooves provide