This is a 5 gallon size container of D/2 Biological Solution.  If you are contemplating a large purchase, please contact us about volume pricing discounts.

D/2 Biological Solution is specially formulated to remove environmental pollution, dirt, and staining from biological soils such as mold, mildew, lichen, and algae from indoor and outdoor structures.

The 3/4” Drum Faucet works with the 5 gallon size to make filling sprayers easier than ever.