Myson Adaptor for TRV 2-Way Thermostatic Radiator Valve Head 28mm to 30 mm adapter

Having a mixture of old and new radiators, and being unable to find a plumber willing to undertake an upgrade of the old radiator connectors because two of the old thermostats had failed, I fitted these adaptors and bought new thermostats to go on top. Easy to fit and does the job until I can finally get a plumber to sort it all out properly. Thx.

I had unsuccessfully tried to locate an adapter to enable a Drayton Wiser wireless thermostatic valve to fit an old Drayton TRV3 radiator valve. Disappointingly Drayton customer services were of no help. Having tried three other adapters I've been able to make this one work. On its own the there isn't enough travel on the metal piston but by adding three 1p pieces inside the adapter and then screwing onto the valve it looks to be working fine. The adapter appears sturdy and well made. I've since bought another three. They are quite pricey but cheaper than the expense of having to replace the old radiator valves with the newer TRV4's.

We have an older radiator in the living room that uses a 28mm TRV. Having bought 30mm TRVs for other rads around the house I decided to try this little thing to see if it'd work. It works perfectly. Happy days.

I needed this to retrofit a legacy heating system to work in conjunction with my nest thermostat. It did just the job. A simple piece of hardware that can bring even an old radiator system up to standard.

I checked the side which attaches to the radiator (28mm) which is fine, the 30mm side which is supposed to attach to the valve does not fit. I checked the valve itself by taking it to a plumber, and it's correct, so it must be the adapter which is faulty. The seller did not acknowledge liability so I had to pay for the return postage. The width does not fit a large letter max, so it should have gone as a parcel, meaning returning it just wouldn't have been worth my while, so I used large letter and was eventually refunded

The range extension was not enough for my radiator. I could only get one turn on the thread and it was not enough to hold, so would fall off. Needs longer thread

Like all old houses my radiators had 28 mm valves. Replaced them with Kasa smart TRVs. These adaptors were exact fit. The screw in to old valve was difficult at first then after few mm got easy and completely screwed in. No need for pennies as mentioned by other reviewers. The pin was out adequately.

Work perfect with TRV. Decent alternative