Bob from SWISCO responded:
September 25, 2020
This looks like a 15-087 Pivot Shoe, which uses Series 180 Coil Balances. It is generally best with this Series to go by stamps on the springs themselves, rather than the shoe. If there is none or you are uncertain, give us the exact window sash weight, and we'll work out the spring weights you need. |
Bob from SWISCO responded:
September 29, 2020
Looks like our 26-408 Tilt Latches to me. Take a look and see if you concur. |