3-square-tubing

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3" x 3" Square Tubing Plug   Fits 3" OD  Tubing Cap  Various Package Sizes
3" x 3" Square Tubing Plug Fits 3" OD Tubing Cap Various Package Sizes

$47.25

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3/4" I.D. x 1" O.D. Aluminum Square Tube Hollow x 72" Long 1/8" Wall
3/4" I.D. x 1" O.D. Aluminum Square Tube Hollow x 72" Long 1/8" Wall

$35.00

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3" X 3" X .188" X 8" Long Square Aluminum Tube 6063-T52 Mill Stock 3/16" Wall
3" X 3" X .188" X 8" Long Square Aluminum Tube 6063-T52 Mill Stock 3/16" Wall

$23.37

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3" X 3" X .188" X 6" Long Square Aluminum Tube 6063-T52 Mill Stock 3/16" Wall
3" X 3" X .188" X 6" Long Square Aluminum Tube 6063-T52 Mill Stock 3/16" Wall

$21.84

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3" Square Tubing Heavy Duty Plastic Plug End Cap Insert 3x3 8-14 Tube Pipe Post
3" Square Tubing Heavy Duty Plastic Plug End Cap Insert 3x3 8-14 Tube Pipe Post

$6.59

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3 X 3 Steel Square Tube 1/4" Tubing Wall Steel Brace Support Welding 10" Long
3 X 3 Steel Square Tube 1/4" Tubing Wall Steel Brace Support Welding 10" Long

$30.20

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3 x 3 x 1/8 STEEL SQUARE TUBE 1PC 36 INCHES LONG
3 x 3 x 1/8 STEEL SQUARE TUBE 1PC 36 INCHES LONG

$45.95

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3/4" x 3/4" x 12" Long .065" (16 gauge wall thickness) A513 Steel Square Tubing
3/4" x 3/4" x 12" Long .065" (16 gauge wall thickness) A513 Steel Square Tubing

$4.50

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3/16" Stainless Square Tubing 12" Long
3/16" Stainless Square Tubing 12" Long

$1.50

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3" x 3" x 12", (0.188"W), Steel Square Tube, ASTM A500
3" x 3" x 12", (0.188"W), Steel Square Tube, ASTM A500

$27.77

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3" x 3" x 12"-Long x .120" Wall Steel Square Tube-- 3" Square Steel Tube
3" x 3" x 12"-Long x .120" Wall Steel Square Tube-- 3" Square Steel Tube

$28.46

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3"X 3"X .120"(11 Gauge) Wall Steel Square Tube 12" Piece
3"X 3"X .120"(11 Gauge) Wall Steel Square Tube 12" Piece

$12.37

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Aluminum Square Tube 7/8 In x 72 In Long 1/16" Alloy 6063 Wall Tubing Stock NEW
Aluminum Square Tube 7/8 In x 72 In Long 1/16" Alloy 6063 Wall Tubing Stock NEW

$29.00

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3 x 3 x 37" Kraft Square Mailing/Shipping Tubes ECT-32B 25/Case
3 x 3 x 37" Kraft Square Mailing/Shipping Tubes ECT-32B 25/Case

$58.39

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3/4" I.D. x 1" O.D. Aluminum Square Tube Hollow  x 72" Long 1/8" Wall
3/4" I.D. x 1" O.D. Aluminum Square Tube Hollow x 72" Long 1/8" Wall

$35.49

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3" Square Tubing Plugs   3" Tube Caps   Black Matte   Economy Pack of 4 Plugs
3" Square Tubing Plugs 3" Tube Caps Black Matte Economy Pack of 4 Plugs

$13.95

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3/4"X 3/4"X .120"(11 Gauge) Wall Steel Square Tube 24" Piece
3/4"X 3/4"X .120"(11 Gauge) Wall Steel Square Tube 24" Piece

$7.95

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1-3/4"X 1-3/4"X .120"(11 Gauge) Wall Steel Square Tube 24" Piece
1-3/4"X 1-3/4"X .120"(11 Gauge) Wall Steel Square Tube 24" Piece

$13.10

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3/4"X 3/4"X .120"(11 Gauge) Wall Steel Square Tube 12" Piece
3/4"X 3/4"X .120"(11 Gauge) Wall Steel Square Tube 12" Piece

$6.60

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Aluminum 3 way  Connector for 3/4" Square Tube sold separately
Aluminum 3 way Connector for 3/4" Square Tube sold separately

$5.99

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4 Pack Threaded Star Type 3/4"(OD) Square Tubing Insert 1/4-20 Threads  S71-244
4 Pack Threaded Star Type 3/4"(OD) Square Tubing Insert 1/4-20 Threads S71-244

$6.50

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1 1/2 X 3 x 1/8 Thick (11ga) Steel Rectangular Square Tubing 12" Long
1 1/2 X 3 x 1/8 Thick (11ga) Steel Rectangular Square Tubing 12" Long

$14.99

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3" Square Tubing Caps Plastic End Caps for Square Cubing  3x3 8-14 Plug Tube Cap
3" Square Tubing Caps Plastic End Caps for Square Cubing 3x3 8-14 Plug Tube Cap

$6.49

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1/4" Wall X 2" X 2" Aluminum Square Tube, 6061 Aluminum, 0.250" Wall Tubing (3)
1/4" Wall X 2" X 2" Aluminum Square Tube, 6061 Aluminum, 0.250" Wall Tubing (3)

$27.30

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4" X 4" X 36" Steel Square Tube 11ga Tubing Wall Steel Brace Support Weld Primed
4" X 4" X 36" Steel Square Tube 11ga Tubing Wall Steel Brace Support Weld Primed

$59.95

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3 X 3 Steel Square Tube 1/4" Tubing Wall Steel Brace Support Welding 4" Long
3 X 3 Steel Square Tube 1/4" Tubing Wall Steel Brace Support Welding 4" Long

$18.90

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3/16" x 2" x 2" Aluminum Square Tube x 3",  6061 Aluminum, 0.188" Wall
3/16" x 2" x 2" Aluminum Square Tube x 3", 6061 Aluminum, 0.188" Wall

$5.59

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Steel Mechanical Square Tube 3" x 3" x 0.125 (11 ga.) x 24” Length
Steel Mechanical Square Tube 3" x 3" x 0.125 (11 ga.) x 24” Length

$22.65

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3/4" x 3/4" x 12", (0.035"W), 4130 Chromoly Alloy Steel Square Tube, Seamless
3/4" x 3/4" x 12", (0.035"W), 4130 Chromoly Alloy Steel Square Tube, Seamless

$18.43

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White Square Mailing Tubes 3 x 3 x 30" ECT-32B 25/Case
White Square Mailing Tubes 3 x 3 x 30" ECT-32B 25/Case

$42.72

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Steel Square Tube 2" x 2" x 36" Long x 1/4" Wall (0.250")
Steel Square Tube 2" x 2" x 36" Long x 1/4" Wall (0.250")

$44.16

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3/4" x 3/4" x 24", (0.035"W), 4130 Chromoly Alloy Steel Square Tube, Seamless
3/4" x 3/4" x 24", (0.035"W), 4130 Chromoly Alloy Steel Square Tube, Seamless

$29.64

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Steel Mechanical Square Tube 3" x 3" x 0.125 (11 ga.) x 48” Length
Steel Mechanical Square Tube 3" x 3" x 0.125 (11 ga.) x 48” Length

$29.31

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3"X 3"X 3/16" Wall Steel Square Tube 12" Piece
3"X 3"X 3/16" Wall Steel Square Tube 12" Piece

$15.10

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1-1/2"X 1-1/2"X 3/16" Wall Steel Square Tube 12"
1-1/2"X 1-1/2"X 3/16" Wall Steel Square Tube 12"

$10.17

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3 X 3 Steel Square Tube 1/4" Tubing Wall Steel Brace Support Welding 6" Long
3 X 3 Steel Square Tube 1/4" Tubing Wall Steel Brace Support Welding 6" Long

$23.68

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Steel Square Tubing  3" x 3"
Steel Square Tubing 3" x 3"

$13.00

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Aluminum Square Tube  Hollow  36" Long x 1 Inch I.D. x 1-1/4" O.D. 1/8" Wall NEW
Aluminum Square Tube Hollow 36" Long x 1 Inch I.D. x 1-1/4" O.D. 1/8" Wall NEW

$35.45

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Steel Square Tube 2" x 2" x 36" Long x 1/8" Wall (0.125")
Steel Square Tube 2" x 2" x 36" Long x 1/8" Wall (0.125")

$30.08

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3/4" x 3/4" x 72", (0.049"W), 4130 Chromoly Alloy Steel Square Tube, (3 Pack)
3/4" x 3/4" x 72", (0.049"W), 4130 Chromoly Alloy Steel Square Tube, (3 Pack)

$178.86

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3" Square Metal Tube - Mild Steel - 16 gauge - ERW - 11" inch long
3" Square Metal Tube - Mild Steel - 16 gauge - ERW - 11" inch long

$11.25

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Steel Square Tubing  2" x 2"
Steel Square Tubing 2" x 2"

$30.00

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1-1/2"X 1-1/2"X 3/16" Wall Steel Square Tube 36"
1-1/2"X 1-1/2"X 3/16" Wall Steel Square Tube 36"

$18.00

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49250 Square Aluminum Tubing, 3/4" x 3/4" x 1/16" x 3'
49250 Square Aluminum Tubing, 3/4" x 3/4" x 1/16" x 3'

$22.04

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2 1/2in x 2 1/2in x 3/16in Wall  Steel Square Tube 12in Piece
2 1/2in x 2 1/2in x 3/16in Wall Steel Square Tube 12in Piece

$19.89

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1"X 1"X .065"(16 Gauge) Wall Steel Square Tube 36" Piece
1"X 1"X .065"(16 Gauge) Wall Steel Square Tube 36" Piece

$8.66

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3 X 3 Steel Square Tube 3/16" Tubing Wall Steel Brace Support Welding 6" Long
3 X 3 Steel Square Tube 3/16" Tubing Wall Steel Brace Support Welding 6" Long

$14.05

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49250 Square Aluminum Tubing, 3/4" X 3/4" X 1/16" X 3'
49250 Square Aluminum Tubing, 3/4" X 3/4" X 1/16" X 3'

$24.89

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Steel Square Tube 2.5" x 2.5" x 20" Long x 3/16" Wall (0.188")
Steel Square Tube 2.5" x 2.5" x 20" Long x 3/16" Wall (0.188")

$26.41

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1-3/4" Square Metal Tube - Mild Steel - 16 gauge - ERW - 84" Long (7-ft)
1-3/4" Square Metal Tube - Mild Steel - 16 gauge - ERW - 84" Long (7-ft)

$31.00

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3/4" x 3/4" x 14ga (.083") -  -24" Mild Steel Square Tube
3/4" x 3/4" x 14ga (.083") - -24" Mild Steel Square Tube

$12.99

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Steel Square Tube 1.25" x 1.25" x 8" Long x 1/8" Wall (0.125")
Steel Square Tube 1.25" x 1.25" x 8" Long x 1/8" Wall (0.125")

$7.73

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3"x 3"x 1/8" Wall ALUMINUM SQUARE TUBE 24" Long 6063 T52 New
3"x 3"x 1/8" Wall ALUMINUM SQUARE TUBE 24" Long 6063 T52 New

$23.99

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4 Pack 3/4" OD Square Tubing Plugs (ID .6"-.67") SQR-3/4-14-20
4 Pack 3/4" OD Square Tubing Plugs (ID .6"-.67") SQR-3/4-14-20

$5.50

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3 X 3 Steel Square Tube 3/16" Tubing Wall Steel Brace Support Welding 8" Long
3 X 3 Steel Square Tube 3/16" Tubing Wall Steel Brace Support Welding 8" Long

$18.56

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3 X 3 Steel Square Tube 3/16" Tubing Wall Steel Brace Support Welding 4" Long
3 X 3 Steel Square Tube 3/16" Tubing Wall Steel Brace Support Welding 4" Long

$9.98

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STEEL SQUARE TUBING (1/16" to 1/4” THICK) HEAVY DUTY (up to 6-feet Length)
STEEL SQUARE TUBING (1/16" to 1/4” THICK) HEAVY DUTY (up to 6-feet Length)

$35.00

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12 Pack 3" Weld On Tube End Cap 1/8" thick square tubing caps for 3" square tube
12 Pack 3" Weld On Tube End Cap 1/8" thick square tubing caps for 3" square tube

$24.00

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Steel Telescoping Square Tube Combo Pack 1-3/4" and 1-1/2" Telescope Tube x 12"
Steel Telescoping Square Tube Combo Pack 1-3/4" and 1-1/2" Telescope Tube x 12"

$40.42

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Steel Mechanical Square Tube 3" x 3" x 0.083 (14 ga.) x 48” Length FREE SHIPPING
Steel Mechanical Square Tube 3" x 3" x 0.083 (14 ga.) x 48” Length FREE SHIPPING

$56.94

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3 x 4 Steel Rectangular Square Tubing 1/4" Wall Bracing Support 8” Long
3 x 4 Steel Rectangular Square Tubing 1/4" Wall Bracing Support 8” Long

$28.47

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2"x2" (3/16" THICK) STEEL SQUARE TUBING HEAVY DUTY Metal. FREE & FAST SHIPPING
2"x2" (3/16" THICK) STEEL SQUARE TUBING HEAVY DUTY Metal. FREE & FAST SHIPPING

$31.49

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STEEL SQUARE TUBING /THICK HEAVY DUTY Weldable Metal sizes from 1”x1” to 4”x4”
STEEL SQUARE TUBING /THICK HEAVY DUTY Weldable Metal sizes from 1”x1” to 4”x4”

$33.17

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Steel Mechanical Square Tube, 3" x 3" x 0.125” (11 ga.) x 24”L FREE SHIPPING
Steel Mechanical Square Tube, 3" x 3" x 0.125” (11 ga.) x 24”L FREE SHIPPING

$44.95

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Steel Square Tube 2.5" x 2.5" x 8" Long x 3/16" Wall (0.188")
Steel Square Tube 2.5" x 2.5" x 8" Long x 3/16" Wall (0.188")

$15.18

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STEEL SQUARE TUBING (1/8" to 1/4” THICK) HEAVY DUTY Metal 1”x1” to 4”x4”
STEEL SQUARE TUBING (1/8" to 1/4” THICK) HEAVY DUTY Metal 1”x1” to 4”x4”

$38.10

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4 Pack Threaded Star Type 1"(OD) Square Tubing Insert 3/8-16 Threads  S71-326
4 Pack Threaded Star Type 1"(OD) Square Tubing Insert 3/8-16 Threads S71-326

$6.82

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3/4" X 3/4" X 1/8" X 48" Length Square Aluminum Tube
3/4" X 3/4" X 1/8" X 48" Length Square Aluminum Tube

$9.49

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3/4"x 3/4"x 1/8" Wall x 36" Long ALUMINUM SQUARE TUBE 6063 T52 .5" ID
3/4"x 3/4"x 1/8" Wall x 36" Long ALUMINUM SQUARE TUBE 6063 T52 .5" ID

$7.29

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Ultra PRO Baseball Bat Tube Display with Square End Cap Playmat Holder Organizer
Ultra PRO Baseball Bat Tube Display with Square End Cap Playmat Holder Organizer

$18.99

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3x3x30 White Corrugated Square Mailing Tubes 25/cs from The Boxery
3x3x30 White Corrugated Square Mailing Tubes 25/cs from The Boxery

$38.50

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4 Pieces 3" X 3" X .250" X 4" LENGTH SQUARE ALUMINUM TUBE 6063-T52
4 Pieces 3" X 3" X .250" X 4" LENGTH SQUARE ALUMINUM TUBE 6063-T52

$45.60

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Steel Square Tube 2.5" x 2.5" x 4" Long x 3/16" Wall (0.188")
Steel Square Tube 2.5" x 2.5" x 4" Long x 3/16" Wall (0.188")

$10.12

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Evergreen Scale Models Square Tubing 1/8" (3) [EVG252]
Evergreen Scale Models Square Tubing 1/8" (3) [EVG252]

$4.17

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Aluminum Hollow Square Tube 1-3/4" I.D. x 2" O.D. x 12" Long 1/8 Inch Wall NEW
Aluminum Hollow Square Tube 1-3/4" I.D. x 2" O.D. x 12" Long 1/8 Inch Wall NEW

$19.45

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3 X 3 Steel Square Tubing 3/8” Thick Wall Steel Brace Support Welding 8" L
3 X 3 Steel Square Tubing 3/8” Thick Wall Steel Brace Support Welding 8" L

$29.26

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Fiberglass Hollow Square Tube 3/4" I.D. x 1" O.D. x 5 ft Long 1/8" Wall ISOFR
Fiberglass Hollow Square Tube 3/4" I.D. x 1" O.D. x 5 ft Long 1/8" Wall ISOFR

$38.50

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3" x 2" x 18", (0.120" Wall), Steel Square Tube, ASTM A500
3" x 2" x 18", (0.120" Wall), Steel Square Tube, ASTM A500

$31.25

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3"x 3"x 1/8" Wall x 14" Long ALUMINUM SQUARE TUBE 6063 T52 3" SQ x .125"
3"x 3"x 1/8" Wall x 14" Long ALUMINUM SQUARE TUBE 6063 T52 3" SQ x .125"

$28.59

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Steel Square Tube 2" x 2" x 40" Long x 3/16" Wall (0.188")
Steel Square Tube 2" x 2" x 40" Long x 3/16" Wall (0.188")

$38.18

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3"X 3"X 3/16" Wall Steel Square Tube 36" Piece
3"X 3"X 3/16" Wall Steel Square Tube 36" Piece

$32.80

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1"X 1" X 1/8"(.125) Wall 6061 T6 Aluminum Square Tube 36" Piece
1"X 1" X 1/8"(.125) Wall 6061 T6 Aluminum Square Tube 36" Piece

$12.38

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3 X 3 Steel Square Tube 1/4" Tubing Wall Steel Brace Support Welding 12" Long
3 X 3 Steel Square Tube 1/4" Tubing Wall Steel Brace Support Welding 12" Long

$38.40

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3"X 3"X 1/4" Wall Steel Square Tube 12" Piece
3"X 3"X 1/4" Wall Steel Square Tube 12" Piece

$17.60

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Steel Square Tube 1-1/2" x 1-1/2" x 9" Long x 3/16" Wall (0.188")
Steel Square Tube 1-1/2" x 1-1/2" x 9" Long x 3/16" Wall (0.188")

$13.20

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Steel Square Tube 3" x 3" x 16" Long x 3/16" Wall (0.188")
Steel Square Tube 3" x 3" x 16" Long x 3/16" Wall (0.188")

$27.20

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3 X 3 Steel Square Tube 3/16" Tubing Wall Steel Brace Support Welding 10" Long
3 X 3 Steel Square Tube 3/16" Tubing Wall Steel Brace Support Welding 10" Long

$23.12

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2"X 2"X 3/16" Wall Steel Square Tube 24" Piece
2"X 2"X 3/16" Wall Steel Square Tube 24" Piece

$17.38

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3" X 3" X .250" X 8" LENGTH SQUARE ALUMINUM TUBE 6063-T52
3" X 3" X .250" X 8" LENGTH SQUARE ALUMINUM TUBE 6063-T52

$26.50

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2 Pieces 3/4" X 3/4" X 1/8" X 6" Length Square Aluminum Tube
2 Pieces 3/4" X 3/4" X 1/8" X 6" Length Square Aluminum Tube

$17.10

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Stainless Steel 304 Garde Square Tube 1-1/2" x 1-1/2" x 18 Gauge  (Custom Order)
Stainless Steel 304 Garde Square Tube 1-1/2" x 1-1/2" x 18 Gauge (Custom Order)

$36.00

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4130 Steel Square Tube,  3/8" Square x .035" Wall x 12" Length
4130 Steel Square Tube, 3/8" Square x .035" Wall x 12" Length

$48.72

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.63" ID/4.725" to 7.875"  Adj Length Clear Square PVC Packaging Tubes; 3 Per Lot
.63" ID/4.725" to 7.875" Adj Length Clear Square PVC Packaging Tubes; 3 Per Lot

$2.55

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1-1/2"X 1-1/2"X 1/4" Wall Steel Square Tube 36"
1-1/2"X 1-1/2"X 1/4" Wall Steel Square Tube 36"

$20.55

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3"X 3"X .120"(11 Gauge) Wall Steel Square Tube 6" Piece
3"X 3"X .120"(11 Gauge) Wall Steel Square Tube 6" Piece

$9.31

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Steel Square Tube 4" x 4" x 4" Long x 3/16" Wall (0.188")
Steel Square Tube 4" x 4" x 4" Long x 3/16" Wall (0.188")

$14.93

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4 Pieces 3/4"x 3/4"x 1/16" Wall 24" Long ALUMINUM SQUARE TUBE 6063 T52 .625" ID
4 Pieces 3/4"x 3/4"x 1/16" Wall 24" Long ALUMINUM SQUARE TUBE 6063 T52 .625" ID

$11.12

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1-3/4" X 1-3/4" X 1/8" X 12" Length Aluminum Square Tube
1-3/4" X 1-3/4" X 1/8" X 12" Length Aluminum Square Tube

$23.85

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3" x 3" x 45", (0.120"W), Steel Square Tube, ASTM A500
3" x 3" x 45", (0.120"W), Steel Square Tube, ASTM A500

$62.96

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Fiberglass Square Tube Grey 3.00" Square x 1/4" Wall x 7 Ft Length, ISOFR,
Fiberglass Square Tube Grey 3.00" Square x 1/4" Wall x 7 Ft Length, ISOFR,

$60.00

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