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Amazon.com: MECCANIXITY PVC Rigid Round Pipe 20mm ID 25mm OD 200mm High Transparency for Water Pipe, Aquarium, Fish Tank : Industrial & Scientific
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MECCANIXITY PVC Rigid Round Pipe 16mm ID 20mm OD 350mm Dark Grey High Impact for Water Pipe,Crafts,Cable Sleeve - Amazon.com
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uxcell 10 Pcs 20mm Inner Diameter Straight PVC Pipe Connectors Fittings White - Air Tool Fittings - Amazon.com