Galvanized tube is generally rectangular or square steel pipe coated with a layer of zinc to prevent rust and corrosion. It's commonly used in construction for its durability, strength-to-weight ratio, and affordability.
Tube  - 16GA - 1-1/4" x 1-1/4" -  Galvanized Steel

Tube - 16GA - 1-1/4" x 1-1/4" - Galvanized Steel

$80.00
Tube  - 16GA - 3/4" x 3/4" -  Galvanized Steel
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Tube - 16GA - 3/4" x 3/4" - Galvanized Steel

$53.82
Tube  - 16GA - 5/8" x 5/8" -  Galvanized Steel
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Tube - 16GA - 5/8" x 5/8" - Galvanized Steel

$47.04
Tube  - 16GA - 5/8" x 5/8" -  Bare SteelTube  - 16GA - 5/8" x 5/8" -  Bare Steel
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Tube - 16GA - 5/8" x 5/8" - Bare Steel

$17.18
Tube  - 16GA - 1/2" x 1/2" -  Bare SteelTube  - 16GA - 1/2" x 1/2" -  Bare Steel

Tube - 16GA - 1/2" x 1/2" - Bare Steel

$14.15