DN15 to DN50 Plastic Camlock Couplings 3Pcs/5pcs 1/2" to 1" Quick Disconnect PP Adapter Pipe Fittings
https://www.vogueparade.com/shopping/EN/200282142/1/1005001891473595/dn15-to-dn50-plastic-camlock-couplings-3pcs5pcs-12-to-1-quick-disconnect-pp-adapter-pipe-fittings//