Hey Bob! What size is the impeller inlet/hose size?

[WandaS]

I have a 1998 215 Explorer and want to order a Perko Flush Pro that is installed just before the impeller housing.
Problem is the boat  is at the marina 35 miles away and I don't know the size of the inlet or hose. could be 1" or 1 1/4.
It's a Volvo/Penta 5.7 liter GS PBYC with a Volvo/Penta  SX-C2 1.51 outdrive.
Can anyone help?

Thank you