Sometime next month I have to fit an electric towel rail for my folks. Having a small bathroom, they want it fitted on the wall at the end of the bath (zone 1). Looking at the ECA Guide To The Wiring Regulations, I am allowed to fit a towel rail in zone 1. My question is How do I ensure that the electrical connection to the supply is fully sealed to the correct IP rating? Does anyone know of a flex outlet plate that will do the job? Thanks.