There is a sticker on the window which I have a picture of but can only load 5 pics so I will type what is on the sticker
AAMA Manufacturer stipulate conformity to ANSI?AAMA 101-85
Series 500 DH_R20 MST: 4664


Thanks for contacting us. Based on your pictures and information, I recommend our S500-30 spiral balance with a black tip color option. As for the metal balance carrier, I feel our 17-012 looks like a good choice. We also recommend a charging tool like our 75-005 to make installation easier, if you don't already have one.
I'm having trouble finding this white face guide. The closest we have to this style is our 67-002, but this definitely looks like it's too small. Could you tell me the specific dimensions for this part? I can't make them out from your photo.