Also a non-magnetic drive pump (which is what this is) needs to have a shaft seal designed specifically for saltwater use. Using a non-saltwater-safe shaft seal will cause it to corrode and ruin the pump, if it doens't leech heavy metals into the water first.
Being a Flowtec and being designed for sprinkler or utility use, the chances of this thing having a SW safe seal is about nil.
Besides, 10.3GPM? That's only about 600gph... a Mag7 can do this for much less electricity.
By the way Tboy, didn't you ask the same question about the same pump a month or so ago? I remember making the same comments on this pump back then.