Glass Washer Replacement Brush for GW-5B and GW-R. 

This brush IS NOT compatible with GW-T

Click links below for Glass Washers this brush fits:

https://barsupplies.com/products/5-brush-glass-washer?_pos=1&_sid=a4e0352aa&_ss=r

https://barsupplies.com/products/round-glass-washer?_pos=2&_sid=c979e6448&_ss=r