Hi, I would like to change out the older hopper style windows in my basement and was wondering if it’s possible to just change out the glass panel portion of the window while keeping the frame. It’s a metal frame set in concrete and looks to still be in decent shape, so if I can easily just change the sash out for now that’s the route I’d like to go. Is that realistic? Any other suggestions for routes to replace the windows?

picture 1: https://ibb.co/sCrkGmB

picture 2: https://ibb.co/WPMV24q