The Clip B7,tube is the cheapest item from this partsfiche.
This schematic depicts all components used in the Civic 1200 Eb3 1979 (z) 3d 5s (kc) Control Valve - Solenoid Valve partslist.
The Control Valve - Solenoid Valve assembly is constructed from several parts from which the Tube,3.5x170 is the most expensive.