Replacement shower trap

[Howard]

The Mira Flight E6702 waste has corroded and leaked. I’ve managed to get the trap off but I’m not sure about the replacement.
When I search for the model number the suggestions don’t look the same.
the shower tray has a 70mm hole (with a flange of 90mm)
The waste pipe is 50mm.
I can’t get a plumber round due to coronavirus so I need to do this myself and I’m nervous when it comes to plumbing.
can anyone suggest a replacement please?
Thanks

 

[Gasmk1]

waste pipe will not be 50 mm it will be 32 or 40mm

any pictures also

https://www.NoLinkingToThis/c/heati...=managedredirect-_-plumbing-_-showertraywaste

 

[Stigster]

waste pipe will not be 50 mm it will be 32 or 40mm

any pictures also

https://www.NoLinkingToThis/c/heati...=managedredirect-_-plumbing-_-showertraywaste

That really needs double checking as there is a chance the installer used 2" for the shower. I know, unlikely, but I don't feel comfortable with "will not be 2 inch" as 2" inch shower traps and pipe are available and the trap may have been misidentified.

We need an absolute definite measurement of the waste pipe, outside diameter.

Howard, are you absolutely certain that the outside diameter of the shower waste pipe is 50mm?

 

[Howard]

Thanks for the replies
Here are some pics
The waste actually looks more 40mm but getting the picture was tight.
the actual waste is fine. It’s just the screw in section and flanger that I really need to replace but I think Mira’s have propriety fittings

 

[SimonG]

Normally if a waste is 50mm it will come with a reducer to 1 1/2". Well all the ones I've seen have