Hi Matty,
Thank you for your query.
The Hep2O HX36/15WS Stop Cock Cold Water 15mm is only suitable for cold water. For hot water, you will need to use either HX35/15W, HX37/15W or HX22/15W.
Hope that helps, but just let me know if you need any further information.
Thanks,
Liam
Answered by: Liam at Wavin
Date published: 2017-09-01