Some items from this specific schematic: Hose A Water In, Clamp 24mm-35mm, Grom Heater Pipe, Clamp,hose&harn.
On this parts fiche the Clamp, Water Hose 21 is the most specified component.
The Civic 1995 (s) 3dr Dx (ka) Water Valve consists of nine pieces with the Valve Assy Water being the most expensive.