Expansion Vessel Hose C788 Compatible with: Andrews Water Heaters CSC Direct Fan Flued Gas Storage Water Heater Andrews Hi Flo Unvented Cylinder Andrews MAXXflo Condensing Storage Water Heater Cylinder Andrews Water Heaters HiFlo Natural Gas Fired Storage Cylinder Andrews Water Heater OFS Oil Fired Storage Cylinder Andrews Water Heaters RSC 150 Gas Fired Storage Cylinder Andrews Water Heaters RSC 190 Gas Fired Storage Cylinder