Need help with metric PVC

[Ruth]

I need to find a supplier that carries odd, or metric I think, PVC and fittings. All I need is a small length (say 4 feet) and 90 degree elbow, of PVC that measures 2 3/4 inches on the inside. The other option would be a converter that goes from 2 3/4 to 2". I have looked all over town here and no one can even suggest where I might go to try and find it. Can anyone suggest a place that I might try?