Hydroguard Replacement

I know that Botanicare's Hydroguard was taken off the market a year or so ago. Is there any product that replaces it? I heard that Botanicare came out with another product but I don't know the name of it.

H202 Also known as hydrogen proxide was all that bottle had in it

Pretty sure it wasn't just h202.

Dutch Master Zone is a similar product that will help give you a sterile reservoir.

zone is good shit, i did have a bacteria that developed though. nothing a little h202 couldn't take care of, then i just went back to "zone"

Botanicare switched to Aqua Shield