Its made by sea_lab marine aquarium products its supposed to be an automatic replenisher and ph/buffer reset. Heres what the first paragraph says in the add that was given to me.:
Sea-Lab 14/28 Seawater chemistry
Sea-Lab 14/28 chemistry comprises just 2 easy to use products, Formula 28 Automatic Replenisher and Formula 14 ph/Buffer reset. The combination of the 2 provides complete and automatic control of concentrations of calcium, strontium, all trace elements, Phosphates, and heavy metal contaminants to those found in natural seawater, below levels that register "zero" on test kit scales.
Sea-Lab 14/28 chemistry also replenishes the alkaline earth metal buffer system, Maintaining natural ocean alkalinity levels.
This is the first part that you read but i'll see if I can find a web page with the whole brochure on it. The reason I asked is because it was said to me that this item works realy great and I should try it but I figured I would ask here before trying it.