Myson TRV 2 Way Replacement Valve Head

Myson TRV 2 Way Replacement Valve Head
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5.0 average, based on 15 reviews


Replacement head for Myson TRV-2-WAY thermostatic radiator valve. Interchangeable with the standard Myson thermostatic head (which looks the same, but has red markings and a white bottom section).

Head only - no valve included.

Our video shows details of the head, including how to identify a faulty head and how to replace the head.

The metal lock ring has a 30mm x 1.5mm metric thread. Myson has used this thread for a long time, though very old Myson (we're not sure how old, probably pre 1997) valves used a smaller 28mm x 1.5mm thread. The older valves are not marked 2-Way and look completely different.

TRV 2 Way valve heads made between 1997 and 2012 had a symbol like the greek letter PI, this newer head, with the EN215 keymark symbol is a direct replacement.

Product CodeMZG

Customer Reviews

Average Rating: 5

Myson thermostats

Received order day after placing it. EXCELLENT service.Well done✅ (17 Apr 2019, 11:36)

Great piece of kit, delivered very quickly.

If, like me, you need this to replace faulty older head, please note that the width of the collar on the original was 1/2 inch, this one is 3/8 inch, so I initially overtightened it, which just pushed the pin back in, stopping the flow. All good now and radiator doing what it is supposed to again. A huge Thank you to the Guys here for their very prompt service. (30 Jan 2019, 16:26)


Thanks to the video it was very easy to identify an issue and replace the head. Ordered and received within 36 hours. Excellent company. (14 Jan 2019, 13:12)

Excellent service

Easy to order and very quick delivery. The valve head is easy to fit, and there is a good video on YouTube by Stevensons just in case you are a wee bit doubtful about how to do it! (19 Dec 2018, 09:14)

Myson TRV-2-Way Replacement Valve Head

Excellent service. Item ordered on-line on Sunday and despatched on Monday, received by post on Wednesday. Good communications and item reasonably priced. 100% satisfied customer. Thankyou. (13 Oct 2018, 10:25)
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