The brushes are made for commercial use and clean the most popular sizes of 1/2 in. and 3/4 in. pipe and fittings. 4-In-1 Brush is designed with long-lasting, stainless steel brushes for cleaning the outside diameter of copper or plastic tube.
This 4 in 1 brush cleans both the inside and outside of copper tubing and fittings in preparation for soldering.