Koshin PGH-50 Pumps. Thermoplastic Pump Replacement Spare Parts and Accessories. 0130024. 0130009.  050-604. 0130002. 0130003. 0130004. 0130011. 0130005. 0130008. Pgh50 Pump Case Check Valve - (Pgh50) 3⁄4" Filler/Drain Bung Flange Bracket - (Pgh50) Volute Casing - (Pgh50) Impeller - (Pgh50) Pgh50 Mech Seal Flange Packing - (Pgh50) Case Pack Volute (Pgh50)