- Myson 2TRVADAP adapts older Myson thermostatic radiator valves for TRV 2 WAY heads with M30 (30mm) thread.
- The male thread on the top of the adaptor is M30 (30mm) and the female thread on the bottom is M28 (28mm).
- Myson TRVs have used M30 threads for a long time, in 1997 they changed their M28 heads to M30 hence the need for this adapter.