Windows Hardware

These four metal channel and springs were not working in opening and closing the window
This window is a doubled pan horizontal opening
The stamp on the metal channel is 27300 and 27308
The metal channels comes with four springs
Please identify me the correct part
The parts are already in the cart.....but I am not sure of their suitability
Appreciate your help in this regard
Special appreciation:
Post to experts is an innovative approach
Help many customers to understand the item