The square ABS plastic trays are suitable for all Rinnai cylinders up to 600 mm in diameter. This includes all Rinnai indoor residential hot water cylinder models, and Rinnai mains pressure indoor/outdoor 90 L, 125 L, 180 L, and 215 L.
The teardrop ABS plastic tray is suitable for Rinnai cylinders up to 488 mm in diamter.