Sash and retainers
I need 18 sash retains and 2 total 3621DS Complete sash assembly 1/2"
Thank you for submitting your inquiry to our discussion board.
For the top sash guide, take a look at our 18-161, compare the dimensions, and see if this can work for you.
As far as the balances go, it looks like you have either our Series 380 or Series 385 channel balance.
The difference between these two series lies in the bottom shoe.
The series 385 balance has the 15-004 shoe which is slightly larger from front to back, as illustrated.
If you measure your shoe as it is pictured here, you should be able to determine which one you need.
Please let me know if you have other questions.
Maybe worn down
Any suggestions on lubricants
You should not need any lubrication with these balances, but if you feel it necessary you can check out our 75-077 Slider Slicker Track Lubricant.