Macro Zyme Muck Blocks

6 pound Muck Block “Time Release” – slowly release bacteria to treat up to 6 acre feet of water. Much more effective when used in combination with current. Great for targeting areas that require treatment. Sold in sealed shrink-wrapped bag in a box. Reapplication required only once every 30 days.

$14.00 shipping to the U.S. 48 States