Grey metal measures 32 inches length and 1/2 inch across Non tilt window
Bob from SWISCO responded:
October 28, 2019
Thanks for writing in. See our S380-32 or S385-32. The only difference between these two balances is the 'depth' of the bottom nylon shoe, so compare both with your old hardware to see what matches best. You will need a stamp option of 3150.