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Tom from SWISCO responded:
August 27, 2019
Looks like you have a 1/2" wide non tilt window channel balance. I've narrowed the list of possible replacement options down to two: either our Series 380 or Series 385. The only difference between them is the depth of the bottom shoe, so you'll have to measure yours and refer to the dimensions we show for each part to confirm the better match. When measuring the length of the balance, make sure to only count the metal channel. Do not include the nylon fittings! Since there are no markings on your old balance, you'll have to weigh your sash on a scale to confirm the proper stamp options. Stamp options basically indicate how strong the spring is. You want a spring that is correctly calibrated for your sash weight. Since you have no old stamp to go by, weighing your sash on a scale is your only option. I recommend being as precise as possible. We have a chart on each balance store page that tells you how much weight each of our options can support. Finally, as for installation instructions, please watch the video below. |
