Parts Catalog // Parts // FMC John Bean R-10 Head (Bare) FMC John Bean R-10 Head (Bare) FMC John Bean R-10 Head (Bare) FMC John Bean R-10 Head (Bare). Valve Chamber for Pump Models: R10, A04, I04. 1" NPT Suction Port x 3/4" NPT Discharge Port. *Prices subject to change PRICE: $264.75 Quantity Add To cart