BSI with a little D before

Question

Hello,
After reviewing the stamp and dimensions on my 2940 channel balance 30" and it looks like a match to your 30"series 385.

However, I was wondering if I need to factor something else in if mine has a D BSI stamp as well.

User submitted photos of a window balance.

Paul · Accepted Answer

I agree, the Series 385 looks like a good choice. Just make sure the nylon ends are the same size. Don't worry about the "D" or the "BSI." All that matters is the "2940."