Anyone happen to know what size these fittings are? I'm adding a aux cooler to my car and I want to just put two 90s in between the line and the radiator and run that to the external cooler. I took my IPD flush line thing that came with the car up to a few hardware stores and it seems to be in between the sizes they offer. I thought about just cutting my IPD flush line and using it but I don't really know what that hose they use is rated for since it shouldn't ever really have pressure on it when its used to flush.