[https://www.amazon.com/dp/B077D8CW6Q?tag=dmflip-20&linkCode=ogi&th=1&psc=1]
Caplugs SQR-2-10-14 – SQR Series – Plugs for Square Tubing, 100 Pack, to Fit Square Tube OD 2.000″ x Height 0.52″, Wall Thickness 10-14 Ga. (.134-.083″), PE-LD, Black, Exterior Ribs (99191860)
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