On Thu, 13 Nov 2003 09:33:48 -0000, RatBox wrote:

Hi Group,

Wonder if anyone could point me to the manufacturer or supplier of Basin
Waste units that are Less than the standard size. My friend bought a sink
back over from Mexico, but without any bits for it as he thought that he
would be able to get the bits here. But I have checked the dimensions of a
standard waste unit similar to those supplied by Screwfix, item code
D66389-72, D16378-72 and D12052-72, they are all 41.5mm using a callipers to
measure the stem of the waste unit.

Shouldn't all be the same size. 16378 is a sink waste, 1 1/2" BSP thread
whereas 66389 and 12052 are basin wastes, 1 1/4" BSP thread.
Basins are usually plumbed using 32mm pipe (1 1/4" waste), Sinks with 40mm
(1 1/2" waste).