I can't make out the brand, looks high end. I took a photo of this, the letters in the shield appear to be 'UPC.' I think that might be A112.18.7/0125 The 7 might be a 1. Either way search gives me no help. The photo was turned 180. That's the body coming up from the counter top. Pressure is just too low, my client says it takes forever for hot water to arrive. It's a large commercial type building remodeled into work/live units about 10 years ago. Looks like all new copper, not sure what it hooks up to down below. I disconnected the supply line from the angle stop to the lead coming down from the faucet to check pressure, and whoa, it's strong, way strong. Not sure what gives with the horrible pressure. In the past I've found accumulated scale in the faucet body. Can't find scale anywhere in this faucet, I checked all the usual spots of course. I mean, I get the virtue of flow restriction but this is too much. Might need to get a new unit and hope for the best.