Amazon.com: Rectangle Black Plastic Plug End Cap - 1 1/2" X 1" Rectangular Tube Caps - Rectangle Tubing End Cap Plug - Plastic Plugs for Rectangular Tube - Rectangular Hole Plug -
Econoco BQRE2SN 2' Long Tubing - 1/2" x 1", 3 mm Thick (Pack of 10): Amazon.com: Industrial & Scientific
Amazon.com: A36 Hot Rolled Carbon Steel Rectangular Tubing - 1 1/2" x 2 1/2" x .188" x 72" : Industrial & Scientific
Chrome Rectangular Tubing 4 Ft
Set of 8) 2"x 4"OD Rectangular Tube Plug, Non-Slip Plastic Tubing End Cap, Furniture Chair Leg Caps, Chair Insert Glides|Finishing Plug for Chair Table Stool Leg Fence Post Pipe(Black,50x100 mm
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Amazon.com: Plugs for Rectangular Tubes - Rectangular Tubing Plugs for 1.000x2.000in Tubes, LDPE Black (Flat Top) MOCAP RC1X2DBK1 (qty20) : Industrial & Scientific
Amazon.com: Satin Chrome End Cap for Rectangular Tubing : Industrial & Scientific
Amazon.com: Rectangle Black Plastic Plug End Cap - 4" X 2” Rectangular Tube Caps - Rectangle Tubing End Cap Plug - Plastic Plugs for Rectangular Tube - Rectangular Hole Plug - Rectangular
Amazon.com: 6063 Aluminum Rectangular Tube 1/2" X 1" X .125" Wall 12" Piece : Industrial & Scientific
Amazon.com: Econoco Blade Bracket for 1/2" x 1-1/2" Rectangular Tubing with Nylon Stabilizer, 1" (Pack of 25) : Industrial & Scientific
USA SEALING BULK-RPT-PVC-39 PVC Rectangular Tubes, 3" Outside Height, 3" Outside Width, 3 ft. Long: Amazon.com: Industrial & Scientific