The Bowser/English C415 uses the BOWS-UNI1 drop-in speaker. Obtain a fuller, smoother sound and clearer detail. The speaker is a drop-in fit and requires no modifications to replace.
 
If you need the 2pin wire-harness, these use the Micro size, available here: https://www.scalesoundsystems.com/product-page/factory-pcb-speaker-harness-micro
 
Dimensions: 9.5mmH x 16mmW x 35mm