Natural, organic mosquito control with no poisonous chemicals. One dunk protects up to 100 sq. ft. water surface area for up to 30 days. 

Kills mosquito larvae before they become adults.
Safe to pets, children, and the environment.
Safely degrades completely. 

Registered with the EPA and all 50 states.

Sum10212: 2/pk 

Sum11012: 6/pk 

Sum1115: 20/pk