Emily from SWISCO responded:
May 19, 2023
Hi there! This looks like our 15-177 pivot shoe to me. The Series 152 coil springs are designed to work with this. I recommend you look over the specifications to ensure they match what you need. Alternate image for 15-177
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Emily from SWISCO responded:
May 22, 2023
I recommend taking a look at the band of the coil spring for a stamped number. If there aren't any, get back to me with the exact sash weight and I'll be able to calculate what you need from there. |
Emily from SWISCO responded:
May 23, 2023
Thanks for getting back to me! If you wanted to stick with the double coil setup you have now, you can use (2) S152-4 4-pound springs on both sides of the window. This would total 16 pounds of overall support which should be fine as long as the coil weights are within a pound of the sash's actual weight. |
Is there another way to do it? Can we speak over the phone?
Emily from SWISCO responded:
May 24, 2023
I'm afraid our department doesn't use phones. We can only respond right here on this page, unfortunately. |
Emily from SWISCO responded:
June 2, 2023
We don't sell your coil springs with curved ends, unfortunately. The Series 152 springs will still work with the 15-177 though. The springs are attached to the side of the shoe with a screw instead of hooking onto it. |