Original 200 series heater core for (2 vent systems).
H202200/500 Series Replacement Tube and Fin Heater Core, 5/8″ Hose Barb (2004 or newer).Replacement Core:For200 and 500 series heatersUnit dimensions: 6.5″W x 10″ Lx 4″ DIf system is older than 2004 you will need to replace the complete heater core unit or modify the box to fit.
