Egg shaped in line filter on central heating

[Ted808]

Anyone seen one of these? I can only describe it as an egg shaped silver metal thingy on the return from a Keston boiler. I am going to service the system and was wondering if how it came apart or if there where any renewable bits inside? thansks

 

[Scott_D]

Like this?
Fernox Boiler Buddy c/w Pump Valves - Mr Central Heating

 

[Ted808]

Yeah a bit like that thanks... probably an older model..

 

[Roger Welton]

Hateful things

 

[Ermintrude]

Rodger, have u cross threadded or had a leak perchance?

 

[Roger Welton]

Maybe, I also find them a pig to clean