![Amazon.com: BAIWANLIN 304 Stainless Steel Tubes rectangle Tubing metal rectangle tube steel frame2pcs side length20mm/500mmLength,20mm*30mm*2mm : Industrial & Scientific Amazon.com: BAIWANLIN 304 Stainless Steel Tubes rectangle Tubing metal rectangle tube steel frame2pcs side length20mm/500mmLength,20mm*30mm*2mm : Industrial & Scientific](https://m.media-amazon.com/images/W/MEDIAX_792452-T2/images/I/41mWMxRHl3L._AC_UF894,1000_QL80_.jpg)
Amazon.com: BAIWANLIN 304 Stainless Steel Tubes rectangle Tubing metal rectangle tube steel frame2pcs side length20mm/500mmLength,20mm*30mm*2mm : Industrial & Scientific
![Amazon.com: MECCANIXITY PVC Rigid Round Pipe 20mm ID 25mm OD 200mm Clear High Transparency for Water Pipe, Aquarium, Fish Tank : Industrial & Scientific Amazon.com: MECCANIXITY PVC Rigid Round Pipe 20mm ID 25mm OD 200mm Clear High Transparency for Water Pipe, Aquarium, Fish Tank : Industrial & Scientific](https://m.media-amazon.com/images/W/MEDIAX_792452-T2/images/I/51ao9s1jhQL._AC_UF894,1000_QL80_.jpg)
Amazon.com: MECCANIXITY PVC Rigid Round Pipe 20mm ID 25mm OD 200mm Clear High Transparency for Water Pipe, Aquarium, Fish Tank : Industrial & Scientific
![Amazon.com: 304 Stainless Steel Tube Outer Diameter 20mm Inner Diameter 12mm 14mm 15mm 16mm 17mm 18mm Tolerance 0.05mm (Color : OD20mm x ID12mm, Size : Length 500mm) : Industrial & Scientific Amazon.com: 304 Stainless Steel Tube Outer Diameter 20mm Inner Diameter 12mm 14mm 15mm 16mm 17mm 18mm Tolerance 0.05mm (Color : OD20mm x ID12mm, Size : Length 500mm) : Industrial & Scientific](https://m.media-amazon.com/images/I/51as-fS7ICL._AC_UF894,1000_QL80_.jpg)
Amazon.com: 304 Stainless Steel Tube Outer Diameter 20mm Inner Diameter 12mm 14mm 15mm 16mm 17mm 18mm Tolerance 0.05mm (Color : OD20mm x ID12mm, Size : Length 500mm) : Industrial & Scientific
![Amazon.com: stainless steel tube OD 28mm ID 24mm 20mm 18mm stainless steel 200mm length (OD28*ID11) : Industrial & Scientific Amazon.com: stainless steel tube OD 28mm ID 24mm 20mm 18mm stainless steel 200mm length (OD28*ID11) : Industrial & Scientific](https://m.media-amazon.com/images/W/MEDIAX_792452-T2/images/I/413FRjpzOzL._AC_UF894,1000_QL80_.jpg)
Amazon.com: stainless steel tube OD 28mm ID 24mm 20mm 18mm stainless steel 200mm length (OD28*ID11) : Industrial & Scientific
![Amazon.com: uxcell 6063 Aluminum Round Tube 30mm OD 20mm Inner Dia 200mm Length Pipe Tubing : Industrial & Scientific Amazon.com: uxcell 6063 Aluminum Round Tube 30mm OD 20mm Inner Dia 200mm Length Pipe Tubing : Industrial & Scientific](https://m.media-amazon.com/images/W/MEDIAX_792452-T2/images/I/51S-hvPrtcL._AC_UF894,1000_QL80_.jpg)
Amazon.com: uxcell 6063 Aluminum Round Tube 30mm OD 20mm Inner Dia 200mm Length Pipe Tubing : Industrial & Scientific
![Amazon.com: uxcell Silicone Tube 14mm ID X 20mm OD 3.3' Flexible Silicone Rubber Tubing Water Air Hose Pipe Translucent for Pump Transfer : Industrial & Scientific Amazon.com: uxcell Silicone Tube 14mm ID X 20mm OD 3.3' Flexible Silicone Rubber Tubing Water Air Hose Pipe Translucent for Pump Transfer : Industrial & Scientific](https://m.media-amazon.com/images/W/MEDIAX_792452-T2/images/I/418THEFdHuL._AC_UF894,1000_QL80_.jpg)
Amazon.com: uxcell Silicone Tube 14mm ID X 20mm OD 3.3' Flexible Silicone Rubber Tubing Water Air Hose Pipe Translucent for Pump Transfer : Industrial & Scientific
![Amazon.com: 304 stainless steel tube,Outer diameter 22mm,ID 20mm 19mm 18mm 17mm 16mm,14mm,12mm Cheerfully (Color : OD22-100mm long, Size : ID20mm) : Industrial & Scientific Amazon.com: 304 stainless steel tube,Outer diameter 22mm,ID 20mm 19mm 18mm 17mm 16mm,14mm,12mm Cheerfully (Color : OD22-100mm long, Size : ID20mm) : Industrial & Scientific](https://m.media-amazon.com/images/I/51ogQlyiorL._AC_UF894,1000_QL80_.jpg)
Amazon.com: 304 stainless steel tube,Outer diameter 22mm,ID 20mm 19mm 18mm 17mm 16mm,14mm,12mm Cheerfully (Color : OD22-100mm long, Size : ID20mm) : Industrial & Scientific
![Amazon.com: 0.8 inch Square Tubing Steel Square Tube 20mm x 20mm x 19.69 inch / 500mm Length Wall Thickness 1mm, 1 Pack 0.8" 20mm Hot Rolled ASTM A-36 Steel Square Tubing from Amazon.com: 0.8 inch Square Tubing Steel Square Tube 20mm x 20mm x 19.69 inch / 500mm Length Wall Thickness 1mm, 1 Pack 0.8" 20mm Hot Rolled ASTM A-36 Steel Square Tubing from](https://m.media-amazon.com/images/I/512pNoXXYgL._AC_UF894,1000_QL80_.jpg)
Amazon.com: 0.8 inch Square Tubing Steel Square Tube 20mm x 20mm x 19.69 inch / 500mm Length Wall Thickness 1mm, 1 Pack 0.8" 20mm Hot Rolled ASTM A-36 Steel Square Tubing from
![Amazon.com: 1-4Pcs 6061 Aluminum Tube Pipe OD23mm ID21mm 20mm 19mm 18mm 17mm 16mm 15mm 14mm 13mm Hollow Aluminum Pipe Alloy Aluminum Tube Cheerfully (Color : OD23 X ID14mm, Size : Length 500mm Amazon.com: 1-4Pcs 6061 Aluminum Tube Pipe OD23mm ID21mm 20mm 19mm 18mm 17mm 16mm 15mm 14mm 13mm Hollow Aluminum Pipe Alloy Aluminum Tube Cheerfully (Color : OD23 X ID14mm, Size : Length 500mm](https://m.media-amazon.com/images/I/51xQcQFJndL._AC_UF894,1000_QL80_.jpg)
Amazon.com: 1-4Pcs 6061 Aluminum Tube Pipe OD23mm ID21mm 20mm 19mm 18mm 17mm 16mm 15mm 14mm 13mm Hollow Aluminum Pipe Alloy Aluminum Tube Cheerfully (Color : OD23 X ID14mm, Size : Length 500mm
![Amazon.com: 4pcs 6063 T5 Round Aluminum Tube, 20mm/0.79" OD x 15mm/0.59" ID,300mm (11.81") Length Metals Tubing Seamless Aluminum Straight Pipe Tubing : Industrial & Scientific Amazon.com: 4pcs 6063 T5 Round Aluminum Tube, 20mm/0.79" OD x 15mm/0.59" ID,300mm (11.81") Length Metals Tubing Seamless Aluminum Straight Pipe Tubing : Industrial & Scientific](https://m.media-amazon.com/images/I/51ErJpbZnqL._AC_UF894,1000_QL80_.jpg)
Amazon.com: 4pcs 6063 T5 Round Aluminum Tube, 20mm/0.79" OD x 15mm/0.59" ID,300mm (11.81") Length Metals Tubing Seamless Aluminum Straight Pipe Tubing : Industrial & Scientific
![Amazon.com: Aopin Round Aluminum Tube 14mm/0.55" ID x 20mm/0.79" OD x 300mm/11.8" Length, Seamless Aluminum Straight Tube 2 PCS : Industrial & Scientific Amazon.com: Aopin Round Aluminum Tube 14mm/0.55" ID x 20mm/0.79" OD x 300mm/11.8" Length, Seamless Aluminum Straight Tube 2 PCS : Industrial & Scientific](https://m.media-amazon.com/images/I/41b4ER3IKPL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Aopin Round Aluminum Tube 14mm/0.55" ID x 20mm/0.79" OD x 300mm/11.8" Length, Seamless Aluminum Straight Tube 2 PCS : Industrial & Scientific
![Amazon.com: MECCANIXITY Clear Storage Tube 0.8" x 9"(20mm x 230mm) Lightweight for Bead Containers, Craft, DIY with Black Caps 5 Pack : Arts, Crafts & Sewing Amazon.com: MECCANIXITY Clear Storage Tube 0.8" x 9"(20mm x 230mm) Lightweight for Bead Containers, Craft, DIY with Black Caps 5 Pack : Arts, Crafts & Sewing](https://m.media-amazon.com/images/W/MEDIAX_792452-T2/images/I/511aJKfkZ-L._AC_UF894,1000_QL80_.jpg)
Amazon.com: MECCANIXITY Clear Storage Tube 0.8" x 9"(20mm x 230mm) Lightweight for Bead Containers, Craft, DIY with Black Caps 5 Pack : Arts, Crafts & Sewing
![Amazon.com: uxcell 3pcs PVC Rigid Round Tubing, Plastic Flexible Water Pipe 16mm(5/8") ID x 20mm(3/4") OD 0.5m, Gray : Industrial & Scientific Amazon.com: uxcell 3pcs PVC Rigid Round Tubing, Plastic Flexible Water Pipe 16mm(5/8") ID x 20mm(3/4") OD 0.5m, Gray : Industrial & Scientific](https://m.media-amazon.com/images/W/MEDIAX_792452-T2/images/I/41pOD09u+-L._AC_UF894,1000_QL80_.jpg)
Amazon.com: uxcell 3pcs PVC Rigid Round Tubing, Plastic Flexible Water Pipe 16mm(5/8") ID x 20mm(3/4") OD 0.5m, Gray : Industrial & Scientific
![Amazon.com: REMSEY 1pcs rectangular tube 20mm*30mm side width 1.5mm wall thickness pipe 100/150/200/300/400/500mm L 304 stainless steel hollow duct kindly (Size : 300mm) : Industrial & Scientific Amazon.com: REMSEY 1pcs rectangular tube 20mm*30mm side width 1.5mm wall thickness pipe 100/150/200/300/400/500mm L 304 stainless steel hollow duct kindly (Size : 300mm) : Industrial & Scientific](https://m.media-amazon.com/images/I/41Q-kQ-WZqL._AC_UF894,1000_QL80_.jpg)
Amazon.com: REMSEY 1pcs rectangular tube 20mm*30mm side width 1.5mm wall thickness pipe 100/150/200/300/400/500mm L 304 stainless steel hollow duct kindly (Size : 300mm) : Industrial & Scientific
![MECCANIXITY Plastic Pipe Rigid Polycarbonate Round Tube Clear 0.7"(18mm) ID 0.8"(20mm) OD 14" (350mm) High Impact for Lighting, Models, Water Plumbing, Pack of 5 - Amazon.com MECCANIXITY Plastic Pipe Rigid Polycarbonate Round Tube Clear 0.7"(18mm) ID 0.8"(20mm) OD 14" (350mm) High Impact for Lighting, Models, Water Plumbing, Pack of 5 - Amazon.com](https://m.media-amazon.com/images/W/MEDIAX_792452-T2/images/I/51y-0SAjetL._AC_UF894,1000_QL80_.jpg)
MECCANIXITY Plastic Pipe Rigid Polycarbonate Round Tube Clear 0.7"(18mm) ID 0.8"(20mm) OD 14" (350mm) High Impact for Lighting, Models, Water Plumbing, Pack of 5 - Amazon.com
![Amazon.com: Tynulox 50 Pcs 304 Stainless Steel Tubing, 6mm OD Stainless Capillary Tube, Industrial Metal Tube (20mm Length Per Pipe) : Industrial & Scientific Amazon.com: Tynulox 50 Pcs 304 Stainless Steel Tubing, 6mm OD Stainless Capillary Tube, Industrial Metal Tube (20mm Length Per Pipe) : Industrial & Scientific](https://m.media-amazon.com/images/W/MEDIAX_792452-T2/images/I/41eHVpBJ53L._AC_UF894,1000_QL80_.jpg)
Amazon.com: Tynulox 50 Pcs 304 Stainless Steel Tubing, 6mm OD Stainless Capillary Tube, Industrial Metal Tube (20mm Length Per Pipe) : Industrial & Scientific
![Amazon.com: 2pcs 6063 T5 Round Aluminum Tube, 20mm/0.79" OD x 15mm/0.59" ID,300mm (11.81") Length Metals Tubing Seamless Aluminum Straight Pipe Tubing : Industrial & Scientific Amazon.com: 2pcs 6063 T5 Round Aluminum Tube, 20mm/0.79" OD x 15mm/0.59" ID,300mm (11.81") Length Metals Tubing Seamless Aluminum Straight Pipe Tubing : Industrial & Scientific](https://m.media-amazon.com/images/I/31-Ll8EPGYL._AC_UF894,1000_QL80_.jpg)
Amazon.com: 2pcs 6063 T5 Round Aluminum Tube, 20mm/0.79" OD x 15mm/0.59" ID,300mm (11.81") Length Metals Tubing Seamless Aluminum Straight Pipe Tubing : Industrial & Scientific
![Amazon.com: Stainless Steel Square Tubing Tube 20mm x 20mm x 2mm x 2750mm, 0.8" x 0.8" x 4/5" x 108.27" Long, 2 Pack 304 SS Square Tubings 2mm Thickness Polished Finished from Amazon.com: Stainless Steel Square Tubing Tube 20mm x 20mm x 2mm x 2750mm, 0.8" x 0.8" x 4/5" x 108.27" Long, 2 Pack 304 SS Square Tubings 2mm Thickness Polished Finished from](https://m.media-amazon.com/images/I/51fmaTiDcAL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Stainless Steel Square Tubing Tube 20mm x 20mm x 2mm x 2750mm, 0.8" x 0.8" x 4/5" x 108.27" Long, 2 Pack 304 SS Square Tubings 2mm Thickness Polished Finished from
![Amazon.com: Unifizz Brass Round Tube Copper Tubing Pipe H65 20mm OD 1mm Wall Thickness 100mm Length Seamless Straight Pipe Tubing for DIY Draft Hollow Decoration Frame Models Hobby 1 PCS : Industrial Amazon.com: Unifizz Brass Round Tube Copper Tubing Pipe H65 20mm OD 1mm Wall Thickness 100mm Length Seamless Straight Pipe Tubing for DIY Draft Hollow Decoration Frame Models Hobby 1 PCS : Industrial](https://m.media-amazon.com/images/I/31FXBwR6L5L._AC_UF894,1000_QL80_.jpg)
Amazon.com: Unifizz Brass Round Tube Copper Tubing Pipe H65 20mm OD 1mm Wall Thickness 100mm Length Seamless Straight Pipe Tubing for DIY Draft Hollow Decoration Frame Models Hobby 1 PCS : Industrial
![Amazon.com: Mssoomm 0.8inch 0.8” Aluminum Square Tube Tubing 20mm x 20mm x 61.42 inch / 1560mm Length Wall Thickness 1mm 2 Pack, 6063 Aluminum Seamless Straight Pipe 2Pcs : Industrial & Scientific Amazon.com: Mssoomm 0.8inch 0.8” Aluminum Square Tube Tubing 20mm x 20mm x 61.42 inch / 1560mm Length Wall Thickness 1mm 2 Pack, 6063 Aluminum Seamless Straight Pipe 2Pcs : Industrial & Scientific](https://m.media-amazon.com/images/I/51qS6X9Hi3L._AC_UF894,1000_QL80_.jpg)
Amazon.com: Mssoomm 0.8inch 0.8” Aluminum Square Tube Tubing 20mm x 20mm x 61.42 inch / 1560mm Length Wall Thickness 1mm 2 Pack, 6063 Aluminum Seamless Straight Pipe 2Pcs : Industrial & Scientific
![Amazon.com: Aopin Round Aluminum Tube 17mm/0.67" ID x 20mm/0.79" OD x 300mm/11.8" Length, Seamless Aluminum Straight Tube 2 PCS : Industrial & Scientific Amazon.com: Aopin Round Aluminum Tube 17mm/0.67" ID x 20mm/0.79" OD x 300mm/11.8" Length, Seamless Aluminum Straight Tube 2 PCS : Industrial & Scientific](https://m.media-amazon.com/images/I/51tm6LhrVgL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Aopin Round Aluminum Tube 17mm/0.67" ID x 20mm/0.79" OD x 300mm/11.8" Length, Seamless Aluminum Straight Tube 2 PCS : Industrial & Scientific
![Amazon.com: 6063 Aluminum Round Tube, 300mm Length 20mm OD 10mm Inner Dia Seamless Aluminum Straight Tubing : Everything Else Amazon.com: 6063 Aluminum Round Tube, 300mm Length 20mm OD 10mm Inner Dia Seamless Aluminum Straight Tubing : Everything Else](https://m.media-amazon.com/images/I/41ihjKULo2L._AC_UF894,1000_QL80_.jpg)
Amazon.com: 6063 Aluminum Round Tube, 300mm Length 20mm OD 10mm Inner Dia Seamless Aluminum Straight Tubing : Everything Else
![Amazon.com: Lnder ID16mm 20mm 25mm Pipe Insulation, Length 1.5m Rubber Foam Tube,Heat Preservation/Fire Retardant Tubular Pipe Insulation Easy : Tools & Home Improvement Amazon.com: Lnder ID16mm 20mm 25mm Pipe Insulation, Length 1.5m Rubber Foam Tube,Heat Preservation/Fire Retardant Tubular Pipe Insulation Easy : Tools & Home Improvement](https://m.media-amazon.com/images/I/7190isl7XUL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Lnder ID16mm 20mm 25mm Pipe Insulation, Length 1.5m Rubber Foam Tube,Heat Preservation/Fire Retardant Tubular Pipe Insulation Easy : Tools & Home Improvement
![Amazon.com: 4pcs 6063 T5 Round Aluminum Tube, 20mm/0.79" OD x 18mm/0.71" ID,300mm (11.81") Length Metals Tubing Seamless Aluminum Straight Pipe Tubing : Industrial & Scientific Amazon.com: 4pcs 6063 T5 Round Aluminum Tube, 20mm/0.79" OD x 18mm/0.71" ID,300mm (11.81") Length Metals Tubing Seamless Aluminum Straight Pipe Tubing : Industrial & Scientific](https://m.media-amazon.com/images/I/314bFcOUhFL._AC_UF894,1000_QL80_.jpg)
Amazon.com: 4pcs 6063 T5 Round Aluminum Tube, 20mm/0.79" OD x 18mm/0.71" ID,300mm (11.81") Length Metals Tubing Seamless Aluminum Straight Pipe Tubing : Industrial & Scientific
![Amazon.com: 20mm 22mm 25mm 28mm 30mm stainless Steel tube Steel Tubes Metal Steel Tubes - tube (Size : 80cm, Color : OD25mmxID15mm) : Industrial & Scientific Amazon.com: 20mm 22mm 25mm 28mm 30mm stainless Steel tube Steel Tubes Metal Steel Tubes - tube (Size : 80cm, Color : OD25mmxID15mm) : Industrial & Scientific](https://m.media-amazon.com/images/I/51EI4FPHqkL._AC_UF894,1000_QL80_.jpg)