Pump Cooling Line Fitting

Location
Idaho
I am doing a spring freshen up on the ski right now and am going to install a second cooling line for my wetpipe since my rear overboard pipe is not used. What size of fitting is recommended to secure to the pump. I was thinking of just using what factory pipe sends with the wetpipe. 1/4" NPT X 1/2" barb 90 degree elbow. Any opinions on this or if I should put a 1/2" NPT X 1/2" barb 90 degree elbow?
 
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