National Hardware Round Tubes 16 Gauge Plain Steel Size:1" x 48" The corrugations throughout the duct

The corrugations throughout the duct prevents collapsing and allows for easily bending the duct when needed

magnesium sulfate

Ideal for use on luggage and clothing

The extended pump and wand allows you to pressurize the tank without bending over

same hole pattern as Norton 1600 & Yale 50 series

National Hardware Round Tubes 16 Gauge Plain Steel Size:1" x 48" The corrugations throughout the ductProduct Description National Hardware's 1" x 48" Round Tube is designed as general purpose round steel tubing for commercial and industrial applications. Made from hot rolled plain steel for durability. Tubing is electric resistance welded For interior and exterior applications Meets ASTM Specification A513