SePRO Copper Sulfate Blue-Stone Crystals for Pond Algae Treatment water features Made for continuous use

Made for continuous use

Re-treat as regrowth begins to appear

PZ-900™ has no water-use restrictions

Each quick-connect point provides a water-tight seal

The new secure locking mechanism that attaches the windmill head to the shaft

SePRO Copper Sulfate Blue-Stone Crystals for Pond Algae Treatment water features Made for continuous useCopper Sulfate is a good alternative to other algaecides. Works in many different water conditions, including hard water. Copper Sulfate will kill on contact. Works great on Chara and Filamentous Algae Inexpensive algae control Crystals can be diluted into a sprayable solution to kill floating algae Available in 5 pound container only Application Rate 2 4 lbs of Copper Sulfate per 1 acre foot of water Please see label for complete product information.