https://alexnld.com/product/creality-3d-0-2-0-3-0-4-0-5-0-6-0-8-1-0mm-24pcs-nozzle-kit-for-3d-printer-part/?hilite="2 PCS White Fuel Tank Fittings D4.5mm Oil Pipe Stopper Aluminum Metal Tube Plug for DIY RC Gasoline Jet Boats 3-4mm Tubing Parts"