The J400 chemical brush from Cotey Chemical Corp. is designed to use two interchangeable brushes to clean 8-, 10-, 12-, 14-, 16-, 18-, 20-, 22- and 24-inch casing. A 4-inch pipe thread bail with -inch shackle allows it to be run on cable. The unit is 48 inches long, and weighs 165 pounds.

Cotey Chemical Corp., Card No. 201