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Pvc Fitting Stable Support Heavy Duty Greenhouse Frame Building Connector - Temu
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16mm ID Elbow Straight Bushing Tee 3 Way PVC Tube Joint Pipe Fitting Coupler Adapter Water Connector For Garden Irrigation - AliExpress
Amazon.com: M METERXITY 3 Pack PVC Pipe Fitting - Water Tube Connector, 16mm Barb Straight Pipe Joint, Apply to Outdoor/Garden/Pool (OD 0.79 Inch, White) : Patio, Lawn & Garden
Greenhouse Frame Building Connectors, Pipe Fitting Gardening Frame Connector, Plant Bracket Plastic Pipe Joint - Temu
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PVC Fittings Water Pipe Drainage Couplers Adapter Cross Tee Elbow 16mm-200mm | eBay