We may have found other answers which could help you.
Click here for Plastic Top Round
how do i remove the cap from a myson 2 way trv?
Myson Apollo 30s plenty of hot water but rads only warm, ?
How can I get a Myson thermostatic radiator valve to work?
How can I fix myson Apollo?
Myson thermostat won't click on?
how do i remove plastic top of myson thermostat?