16mm Id Elbow Straight Bushing Tee 3 Way Pvc Tube Joint Pipe Fitting Coupler Adapter Water Connector For Garden Irrigation - Pipe Fittings - AliExpress
Tubing, PVC Clear, Dia: 10mm x 16mm (3/8in x 5/8in) - [Length 3m / 9.8ft]
Amazon.com: uxcell PVC Rigid Round Tubing, Plastic Water Pipe 16mm(5/8") ID x 20mm(3/4") OD 0.5m, Gray : Industrial & Scientific