WHOLESALE 4 in 1 PIPE CLEANING BRUSH Easily cleans and deburrs inside pip ends. Quickly removes debris from pipe threads. Use to prepare pipes for soldering and brazing. Fits 1/2" and 3/4" pipes. ⚠ WARNING: This product can expose you to LEAD&DEHP, which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.