Halcyon’s new series of regulators are now in stock to pick up from the store or order online with free UK mainland delivery. The piston and diaphragm first stages as well as the H-75P and H-50D second stages have been upgraded. Better components, better performance, increased ease of breathing at any depth. These regulators are great for any kind of setup from single tank to twins and stage bottles. Check them out at Halcyon Regulators @ DirDirect – #1 Halcyon dealer.