Tom from SWISCO responded:
August 5, 2016
Thanks for posting. If you have the 19-005 and 15-005 then the Series 380 is a great match. I would also recommend a 2520 option for that 10.5 pound sash. Your original stamp corresponds to the 2510, which is too weak for your sash. Did you ever find your windows difficult to operate before?
I'm not sure about your second question. There appears to be no difference in length. Can you clarify? |