33x42 female PVC fitting and 40mm sticking male side

PVC fitting with one threaded side female 33/42 and another male side to be glued, internal diameter 40 mm. Correspondence of connection dimensions in mm and inch: - diameter 33 mm (inside) / 42 mm (outside) = 1 ¼ inch - diameter 40 mm (inside) / 49 mm (outside) = 1 ½ inch - diameter 50 mm (inside) / 60 mm (outside) = 2 inches