The SSB version looks an awful lot like what I have seen in other posts described as SF2001A from Taprite. I just got this from Taprite:
"SF2001A is chrome plated brass, just as SF2001. The "A" version is an alternate product - it's shorter than its counterpart and it's inner workings aren't as easily accessible. My personal preference would be the SF2001; it's a bit more robust and it's one of the most reliable, low maintenance stout faucets available."
So if it is actually a Taprite ( I had asked for brand and model number in the past and got a "dunno" from SSB which was a bit disconcerting), it is NOT stainless. May still be better than another brand, but not because it is stainless.