2340C Milgard balancer

Hey, Anne. I'm afraid the stamp alone doesn't tell us what Series you have. You say you have the 19-005 top, but there are many Series that use this. Specifically, you could have either our S385-24, S380-24, or S395-24 channel balances. The only way to know for sure what you have is to carefully compare your bottom shoe with those we show for these series. The first thing to note is whether it has tabs on either side. The next thing to note is its depth. We show detailed pictures and dimensions for each balance on their respective store pages. You need to measure your own show to confirm.