Cultiwool 6" x 6" x 6" Blocks of Cultilene Rockwool with Optidrain and Donut Rings - Case of 48 lamps You don't need to worry

You don't need to worry about any changes in the environment

Optimizes germination rate

CES Grow Component: This element forms a vital part of the CES base 3-part system

BPA-free and UV resistant

You can also cut to fit any other smaller square or round fan

Cultiwool 6" x 6" x 6" Blocks of Cultilene Rockwool with Optidrain and Donut Rings - Case of 48 lamps You don't need to worryDescription Cultiwool 6" x 6" x 6" Block w Optidrain & Donut Ring (48 Blocks Case) by Cultilene: Cultiwool's growing blocks offer unique efficiency tied to product consistency. Key features include quick and easy uptake of water and the even distribution of water throughout the substrate, which make this growing medium outstanding. Superior Stone Wool Quality: Not only can consumers expect the top quality stone wool on the market, but Cultiwool also