what numbers relate to weight lift

A handy person from cape coral fl says:
December 1, 2016
The balance rods are marked 27 14L it is on a 35 non impact window. What would the weight lift number i need to replace? Also have 27 4L on a 25 non impact window. Can you tell me or do I have to remove and weigh them. Thank you Eric
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Paul from SWISCO responded:
December 5, 2016
Thanks for posting. I'm actually not sure, your stamp is fairly odd. I recommend that you weigh your sash on a scale and refer to the chart on our S351-28 store page to determine the best choice. If your sash weight is not on the chart, let me know.
28" Series 351 Channel Balance
28" Series 351 Channel Balance
S351-28
$10.97
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