The 1 inch – 32mm Adapter is commonly used with 1 inch + 32mm rigid pipe and 1 inch + 32mm flexible rigid pipe.
Best to use a plumbing cleaner then pipe cement to assemble. Pipework pushes inside this part.
*Comes in grey not white as shown in this picture*
Internal Diameter: 32 mm
Outer Length: 47 mm
Depth / Diameter: 40 mm