The only numbers on them are: 28 3 IW CMC 11. Please see pix. Which ones do I need? Bottom part of window removed and weighs about 18 pounds. The metal portion of my old slider is 29 inches long.
Casey from SWISCO responded:
May 11, 2018
Hello, It looks like you''ll need our S395-29 with a 2830 option for your spring weight. Take a look and let us know if you have any other questions. Thank you! |