I can't seem to find phosphoric acid sold as 'metal prep' anywhere recently.
I've used the Jasco product and it's great stuff. I did not know it had additional ingredients which assist the process.
Jasco is about $14 a quart when I could find it, not outrageously priced. But often simple ingredients can be had at hugely lower price.
So I thought I'd check, I'm currently unemployed and pinching the pennies on supplies.
