The shipping is pretty cheap, especially if you buy a few things. I find the savings on each product is enough to cover the shipping. Plus, buying a few lbs of GFO at a time really lowers the cost too.
Otherwise, RowaPhos is a comparable product capacity-wise, but a bit pricier. A lot of the "HC" GFOs aren't advertised as being HC because some are just better than others. BRS likes to offer a lower grade as well as a higher grade, so they kinda made up the "HC" part.
