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Discuss 40mm pipe to 50mm internal diameter boss in the UK Plumbing Forum | Plumbing Advice area at PlumbersForums.net

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Boss Adaptor

I don't know if such a thing just doesn't exist, but I am looking for a boss adaptor for a 40mm solvent pipe to fit a boss with 50mm internal diameter?
 
2” to 11/2 reducer eg 50mm to 40mm
 
ShaunCorbs said:
2” to 11/2 reducer eg 50mm to 40mm
Click to expand...
Hi Shaun, so I brought a reducer from screwfix which I understood you were advising, however the outer part is the same diameter as the pipe I am trying to fit so doesn't fit in it.

I measured the outside of the boss, which is 55/56mm external diameter. I've included a photo of the boss in question now.

20220914_183550.jpg
 
Link to said reducer ?

Have you tried a 40mm coupling ?
 

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