On 11 Oct 2006 02:56:04 -0700, "David Sims" wrote:

Fitting new shower valve - the connections are perpendicular to a
vertical wall. The inlets are 15mm, supply is 22mm chased in the wall.

Is there a reducing elbow available ?

Yes - they're widely used for sparge pipes in urinals, where the
horizontal run from bay to bay is in 22mm and the downcomer is 15mm.

--
Frank Erskine