Part numbers needed

A handy person from West palm beach says:
Hi there!
I need thwblaet number for these metal stopper pieces for my window. Also, if you have them, the plastic covers that go into the window channel.
Thanks in advance.
Thumbnail of the uploaded file named Window clip
Thumbnail of the uploaded file named Clip
Thumbnail of the uploaded file named Window channel
Thumbnail of the uploaded file named Sash stop
Profile picture of Casey
Casey from SWISCO responded:

Hello,

Our closest match to the part shown in your first two photos would be the 55-043 sash stop shown below, which prevents the sash from rising all the way to the top of the window. If your part is just a cover, unfortunately, that is not something that we carry. Review the dimensions and see what you think. 

Profile view of 55-043
Profile view of 55-043

We do not carry an exact match for your metal stop but the design is similar to the 16-028 except that ours has a tab at the bottom instead of the top. Review the specifications below to see if this might work for your repair. Thank you! 

Dimensions for 16-028
Dimensions for 16-028

How to replace the Keller Series 303 Window Balances
How to replace the Keller Series 303 Window Balances
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