Windshield washer

[68Zproject]

I was wondering if someone with an original windshield washer cap on the tank could measure what the nipple size is for the hose going from the tank to the inlet on the washer unit.  I bought "correct" ribbed washer hose years ago and it is way too loose on that nipple on mine.  I'm thinking it could be an aftermarket lid that isn't right or the hose.  Just don't know which one.

[68Zproject]

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