Pond Force Pond Bacteria Cold Water Blocks are ideal Spring and fall treatment. Works in 35(F) degree pond water (up to 95(F) degree). Clears water / reduces sludge in your pond!

Each block treats 1,000 gallons

Sizes Available:

PFCB12 - 12 blocks (Treats 12,000 gallons)

PFCB24 - 24 blocks (Treats 24,000 gallons)