Looking for replacement part

There are two balances that resemble what you have, our Series 380 and Series 385. That said take a look at our S380-26 and S385-26. The difference between these two lie in the depth measurement of the bottom shoe. Measure the depth of your bottom shoe and compare it to both balances. See which one is most compatible. Whichever one you decide on will go with a 2550 option. 

Comparison of 15-004 and 15-005