Alpha 6 Jumbo Brush Box Insert (A6-JBBI)

High density urethane brush inserts double the capacity for storage and securely guarantee no more crushed brush hairs. Each insert has 3M industrial strength adhesive on back. These are a direct replacement for the stock springs in the Mack Brush brush boxes and can also be used in any brand of box you may have.

For Mack Brush Boxes:

• Small – BB-31 (5″ X 6 1/2″): one insert
• Medium – BB-46-NS (3 1/2″ X 10″): two inserts
• Largest – BB-62 (5″ x 14″): three inserts

Each brush box insert measures 4.75″ long x 1″ wide x 3/4″ high and has a capacity of 6 large brushes