Can I order these parts?

Hey there! Thanks for reaching out to us. I'm afraid I'm not familiar with the part shown here. May I see a photo of it installed? Can you also tell me its function? I can't promise we'll have a suitable replacement but those details should help us confirm. 

Thank you! Hmm, this wasn't what I was expecting. Please allow me to consult one of our senior experts. We'll reach out as soon as we have more information. 

I'm sorry to say we couldn't locate a match for this top sash guide. Unfortunately, the style of this is too different from what we can offer. I sincerely apologize that we can't be of help with this repair; please let us know if you have any other hardware questions.