"A very simple piece of kit, sends the hot water in all directions over wall not at anyone in the event of a pressure relief. Small size equals less danger of being vandalised or stolen like a length of copper pipe could be and a Yorkshire fitting as well."
"Overpriced product. However I find it has an excellent value: - when working in confined areas - does not need 3 hand to solder it - block of flats - where people damaging the pressure discharge pipe or blocking it (like chewing gums) -at height height . Nicely spreads the water on the wall."