The brush actually removes copper residue and any buildup when you you switch from a fitting brush to the OD cleaning brush

such as PVC

combined with a shatter-resistant steel core

A/S FILL VALVE

PVC DWV WHT 4X2 FLUSH BUSHING

TROWELS CARBON STEEL FULLY ROUNDED XTRALITE 16x4 COVER PLATE-BLANK The brush actually removes copperThe MARSHALLTOWN's Fully Rounded Finishing Trowels are properly shaped to create a smooth, flat finish and decreases the chance of leaving a groove. It's created from the highest grade, hardened and tempered, spring steel. The aluminum alloy Xtralite mounting has a lightweight feel but stays durable through any job. This trowel comes in a variety of blade materials, blade sizes, and handle material. Pick the right variation for your needs and have a