Originally Posted by SoCalLandscapeMgmt
If it's 12 years old it should be an MC-B+. The original MC+ and MC-A+ had the yellowish/brown metal faceplates. There was no functional or cosmetic difference between the MC+ and the MC-A+. There was a slight design difference electronically. The MC-B+ was released once the James Hardie Co bought Irritrol / Garden America from Black and Decker. The Irritrol B+ Series were all engineered by James Hardie.
You mean James Hardie the company, not the man, right? Because the man for whom the company was named died in 1920.