I would guess it was an "air-cel" line. Likely a mint green color too. SA makes cheap stuff because wal-mart sells cheap stuff. I have used an air-cel and would never again. It cast poorly and held every little ripple that was put into it.
That one was a DT-6-F and I'll ship it to you for $10 (shipping included) if you want. I fished it twice. Let me know if you're interested, but I can't give it an honest recommendation.
If you want a good SA line for non-delicate presentations that happens to be fairly cheap too, get the "Headstart". Its part of the Mastery series, has that great AST coating, and goes for $35. I said "non-delicate presentations" because it is basically tapered like a Bass Bug line, but they make it all the way down to a four. You can always lengthen your leader to fish delicately for trout, but this thing will kick poppers over better than a trout line would.
The thing is on the heavy side, so you might not like it on a glass, cane, or slow rod.