It is a bar of copper and silver. It can be found at http://algaebar.com
You might look at http://www.ecosmarteusa.com/ It uses copper instead of silver, and copper has some advantages for this application, such as no blackening of the pool liner, and it is a better algaecide than silver. But other than that very similar, and no chemicals. Marshall [email protected] wrote: > Thank you! What is an Algaebar? Jill
