Store › Bio-Ag Bio-SuperSil 2.5 Gallon (2/Case) Image 1 of 1 Bio-Ag Bio-SuperSil 2.5 Gallon (2/Case) $88.00 0.5% Soluble Silicon-Organic Purchase Added! 0.5% Soluble Silicon-Organic You Might Also Like Quick View HyShield 20L by Hygrozyme $99.00 Quick View HyClean 208L by Hygrozyme $2,000.00 Quick View Bio-Ag Full-Power 5 Gallon $90.00 Quick View HyClean 20L by Hygrozyme $250.00 Quick View MadRoots - AgPro All in One Soluble 5lbs $200.00