2930 Channel Balance for a Non-Tilt Lawson Window

Hello and thanks for contacting SWISCO. This looks like either our S380-30 or S385-30 with a stamp option of 2930. The only difference between these two balances is the 'depth' of the bottom nylon shoe. With the Series 380 this depth is at 1"; with the Series 385 the depth is at 1-3/32". Compare these dimensions with your old part to see what makes the most sense.