These elbows give a gently rounded curved bend which produces less resistance to the air as well as minimising the risk of blockage.
21 May 2017
Does it fit?When you buy the equivalent item in 63mm size it connects directly to the pipe. With this one however it is the same size as the pipe so each connection requires 2 joiners. They really should make this clear in the description. Other than that, it is a solid piece of plastic which should do the job once my extra joiners arrive!