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Globe Scientific 116152K Polyethylene Flange Plug Cap for Test Tubes, 16mm Size, Black (Pack of 1000): Science Lab Cap Plugs: Amazon.com: Industrial & Scientific
Amazon.com: Kalolary 10PCS Barbed Tee 1/2 inch to 1/4 inch Irrigation Tube Anti-Drop Premiun Quality Fitting (fits 13mm ID/ 4mm ID), 16mm PE Pipe Lock Female Connector to 47 Pipe Variable Diameter
Amazon.com : Fdit 10Pcs 16mm to 4/7 Garden Lock Barbed Garden Connector Tee Connector for PE Hose Garden Irrigation : Patio, Lawn & Garden
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Amazon.com: Connector PE Pipe Fittings Three-Way Quick Joint Tap Pipe Fittings Plastic Pipe Fittings 16/20/25/32/40/50/63mm Fitting (Color : Blue, Thread Specification : 16mm) : Tools & Home Improvement
Pipe Fitting PPFT14335 Fast Joint Elbow Plastic PE Pipe Fittings Blue Cap Fast Joint 16mm 20mm 25mm 32mm 40mm 50mm 63mm - (Black/20mm) - - Amazon.com
100pcs PE Test Tube Plug Diameter 12mm 16mm Lab Test Tubes Generic Stoppers Soft Leakproof Labware Caps, Blue/Snow and Blue: Amazon.com: Industrial & Scientific
Amazon.com : Kalolary 100 Pieces Drip Irrigation Fittings Kit Drip Irrigation Connectors for 16mm PE Tubing, Included 20 Tees, 20 Elbows, 20 Couplings, 20 End Cap Plugs, 20 Straight Barbs Drip Irrigation Parts : Patio, Lawn & Garden
Amazon.com: Mainaisi 10PCS 16mm to 4/7mm Tubing Connector Garden Irrigation Water Adapter 6-Way PE Pipe to 1/4 Inch Micro Hose Coupling Joint (Color : KSL01-KIT231-10P) : Patio, Lawn & Garden
Globe Scientific 118115Y Polyethylene Universal Snap Cap for 12mm, 13mm and 16mm Test Tubes, Yellow (Pack of 1000): Science Lab Cap Plugs: Amazon.com: Industrial & Scientific
Amazon.com : Kammas 16MM PE Hose Repair Connectors Garden Irrigation Tee Elbow End Plug Straight Barbed Connector Watering Fittings 5PCS - (Color: B) : Patio, Lawn & Garden
Amazon.com: 5pcs 1/2" 3/4" Threaded Tee Connectors, 16mm 20mm 25mm PE Irrigation Pipe Connector, DIY Micro Irrigation System Water Pagoda Garden Connectors (Color : Male 3l4 in 16mm Tee) : Everything Else