Charging Voltage?

Good morning son. Up earily aren't you? Checked my battery voltage with the other meter when I got home and you were right. The one I brought over is the dude. About 1 volt high. Battery was at 12.75 with the good meter. There are 2 regulators listed. One for 35-46 amp alternator and 1 for 60 amp alternator. Chedcked Rockland pricing and was $43.85 so Rafuse's price will probably be about $60 or more. Both regulators were same price. Probably should know what amp alternator you have before you order one. good luck.