what brand is this shower stall faucet?

[MICA353]

I want to change the cartridge on my leaky shower stall faucet but i cant figure out how to remove the single handle. I assume theres an allen screw in the hole of the handle but none of my keys are fitting in =...Can someone help identify the fixture and hlep me ?
Thanks!

 

[Marlinman]

It appears to be American Standard Colony Soft. A photo of the valve would help.

Colony Soft 15 GPM Tub and Shower Trim Kit with FloWise Showerhead and Lever Handle

When you want to update your shower install the American Standard Colony Soft Bath and Shower Trim Kit with Flo-Wise Water Saving Showerhead in Polished Chrome. This trim kit includes a brass wall Escutcheon, metal lever handle, diverter tub spout and FloWise showerhead with arm and flange. This...

www.americanstandard-us.com