Fitting Magnetic Cleaner to 15mm Piping

[The Clot]

I would like to fit a device to clean the CH system, ie Spirotrap MB3 or similar. But the accessible pipework is all 15mm. Can I just fit a coupler to take the 15mm pipe out to 22mm, fit the Spirotrap and then another coupler the other side?
[I have already drained and cleaned the system as best I can, used Fernox F3 cleaner].
thanks.

 

[gigz]

If thats all you can get to it'll be ok. You can get reducers to go inside the 22mm nuts, just take the olives out.

 

[The Clot]

Great, thanks for quick response, much appreciated.

 

[gigz]

Thats ok, early dart today, everybody happy