Emily from SWISCO responded:
August 17, 2021
Hi there! When determining length, make sure to include only the metal channel in your measurement. Your stamp reads "2120", which means the length of your metal channel should measure 22" not 21". If your metal channel does measure as 22", then you'll need our S390-22 with a stamp option of 2120. If you have any further questions just let us know. |
Emily from SWISCO responded:
August 23, 2021
Not a problem! Please let us know if you needed anything else. |
Emily from SWISCO responded:
September 21, 2021
Hey, Frank. I'm sorry to hear you're having trouble! It sounds like you might have too weak of a stamp option. We recommend weighing your sash on a scale to confirm. Let us know what you find or if you have any other questions. |