Hi there, yes a 22mm metric copper will push into any 22mm Hep2O socket. On the spigot/socket reducer the socket is actually on the 15mm side and the spigot on the 22mm side. If you need any more information, please don't hesitate to get in touch. Thanks, Hep2O team.
Answered by: Liam at Wavin
Date published: 2018-05-12