BLKBOOSTPLU Booster Terminal Plug Black
Black Color Matches Original Plugs Shipped with DB220 Boosters
Replacement for lost or damaged booster terminal connectors
Specifically for DB220, compatible with all Digitrax Boosters/Command Stations
 
MSRP $8.00  
https://www.digitrax.com/products/accessories/blkboostplu/