Where can I find a fitting that goes from National Pipe Thread (USA) to darn metric pvc pipe. I am doing a mod to my Coralife 65 skimmer for the downtube inside and I really need to get the original inverted cone that directs the bubbles upward back onto my longer tube (it is now 3/4" PVC).
Or do I have to do something else like O-rings or make my own fitting?
Or do I have to do something else like O-rings or make my own fitting?