Black Swan's Four-In-One Tube Cleaning & Fitting Brush 1/2" & 3/4" Specialty Caulks The maximum pressure is 150

The maximum pressure is 150 psi (10 bar)

comfortgel+™ bypass lopper

** In digital cameras

No need for weep holes

Black Swan's Four-In-One Tube Cleaning & Fitting Brush 1/2" & 3/4" Specialty Caulks The maximum pressure is 150Black Swan's Four In One Tube Cleaning & Fitting Brush is a unique brush that cleans the inside and outside of copper tubing and fittings for 1 2" and 3 4" sizes prior to soldering. Brushes are made from high carbon steel and are housed in a durable plastic casing. When the brushes are no longer useful a replacement kit can be purchased that contains all four brushes. Can also be used to clean battery terminals.