Korallin 1502 fitting size

[Bam327]

Hey everyone. Shot it the dark here. I wanted to convert my Korallin C1502 to a biodenitrator and had everything ready to go and as I was tightening the union fitting on the outlet assemble, the union cracked. Everywhere is out of these outlet assemblies. But I thought that I might be able to put my own together, however I’m struggling to find the right size of these fittings. I ordered 1/2” and 1/4” size which were both too big. Does anyone know what size these fittings are? This isn’t exactly a difficult thing to build if I can find the right parts. BRS doesn’t carry Korallin, and with them purchasing MD and liquidating all Korallin inventory, I don’t believe they will ever restock these pets and I can’t find anywhere else to buy them.

 

[JumboShrimp]

Maybe add a photo of the cracked piece, in case that helps get a response from someone. Best wishes.