There Are Many Single Handle Rotate To Turn Gerber Faucets.
Remove Your Handle ,And Click Below On The Model You Have.

 

Gerber 97-058 Gerber GA507978 Gerber Safetemp

97-058
The Stem Is Square All The Way Back

GA507978
The Stem Has Splines On It.

97-022
Safetemp

Gerber Safetemp II

Gerber 97-231

Gerber Tempress

95-154
Saftemp II

97-231
Ceramic Cartridge

Tempress
Comfort Zone