ORGILL Poly 4X24-B Polyethylene Sheeting, 4-Mil, Black

white on one side black on the other very useful for many many applications 20 mil the stuff is tough compare it to a six mil and i don't need to knock six mil but we're talking about a world of difference okay excellent for hydroponic liners excellent for many applications even small pond liner applications it's unique only at farm plastic supply i'll give you one more example on top this is come on in here we're both way good we're good check it out available at farm plastic supply 20ml