Wash down connection

[GrandWood]

1972 GB36 woodie, this is a pic of the wash down connection on the side of the house, it’s not familiar to me, anyone know what type of connection I need to hook up to this one, thanks

 

[tiltrider1]

here you go. Jabsco 31911-0000 | Fisheries Supply

 

[GrandWood]

here you go. Jabsco 31911-0000 | Fisheries Supply

Thank you, have one on order