John Guest 3/8 Stem to 1/2 Hose Barb - Join 1/2 silicone tube

John Guest & Whale Push Fit Plumbing – RV MEGA

10mm x 15mm Speedfit Stem Elbow - PEM221015W - On-Demand Supplies

Replacement Parts & Accessories – TAXA Outdoors

Water tubing and fitting – HydroponiquePro

PM250806E - 8mm Stem x 6mm Barb, Tube To - John Guest

JG Speedfit 15mm x 3/4 Straight Tap Connector Brass Nut - PEMSTC1516

John Guest Tube to Hose Stem 3/8 inch Stem x 3/8 Hose (one supplied) : : DIY & Tools

Tube to Hose Stem, Specialty, OD Tube Fittings

Tube and Fittings – WilliamsWarn