Hi all. Son just bought new house and need to adapt new toilet pan (upstairs bathroom) to old Bartol Grey waste pipe. Bartol is weld pipe approx 4.37" o/d-4.14" i/d (metric 112mm o/d -105mm 1/d) and would guess with this being a thicker pipe it's about 3.5-4mm wall thickness.
Have bought a...
