On 16/03/2020 15:35, Jimk wrote:
R D S Wrote in message:
On 16/03/2020 15:25, R D S wrote:
On 16/03/2020 15:22, R D S wrote:
Ideally I need to connect a sink waste to a soil pipe, it's 3 inch.
Does a 3 inch strap on boss exist? Because I can't find one.

There are 82mm..... that could work.

That will work, why are we calling 82mm pipe '3 inch'?


I.D. ?


Mebbe...
But still, if we are going to pick internal or external as a way of
describing pipe, it would be handy if it was the same for imperial and
metric.

Anyway, i've stopped looking for a 3 inch/75mm (or 76mm) boss.