1/8" 1/4" 1/2" 3/4" 1" Male Thread Equal 100mm 150mm 200mm 300mm 400mm Extension Tube Pipe Fitting 304 Stainless Steel Connector
https://www.vogueparade.com/shopping/EN/200282142/1/1005003731350092/18-14-12-34-1-male-thread-equal-100mm-150mm-200mm-300mm-400mm-extension-tube-pipe-fitting-304-stainless-steel-connector//