what numbers relate to weight lift

Question

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

Paul · Accepted Answer

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.