27 4 EN Caldwell sash spring bar and sash window clips

Take a look at our S380-28. Go over all the dimensions and specifications listed, including the depth of the bottom nylon shoe, to ensure it matches. You will need a stamp option of 2740. By window clips, do you mean take-out clips like our 16-002? Or do you mean the Top Sash Guides, the nylon caps in the corner of the window sash that keep the balance in place? If so, we'll need to see yours out of the window, with views from the front and side. 

Thanks of this. I believe this our 18-124P Top Sash Guide. Just look over the dimensions to confirm.