The only markings I see, are GU, and the letter A.
I have more pictures, if necessary
5 user uploaded images
2 Replies
Emily from SWISCO
Mar 24, 2022 9:03 am
Hello!
Your GU operator is no longer made but take a look at our 39-315 and 39-316 operators, along with the video below, to see if you can use these as a substitute.
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