16mm Id Elbow Straight Bushing Tee 3 Way Pvc Tube Joint Pipe Fitting Coupler Adapter Water Connector For Garden Irrigation - Pipe Fittings - AliExpress
Uxcell 16mm ID 20mm OD 0.35m White PVC Rigid Round Pipe High Impact - Walmart.com
Tubing, PVC Clear, Dia: 10mm x 16mm (3/8in x 5/8in) - [Length 3m / 9.8ft]
GSN 1m PVC Conduit Pipe, For Industrial, Size: 16mm dia
10Pcs 4 Way 16mm Elbow PVC Pipe Fitting Build Heavy Duty Greenhouse Frame Furniture Connectors Tent Connection - - Amazon.com