Stainless Steel Dual Flush CisternStainless Steel Dual Flush Cistern AB CIS DF 2 (BOTTOM ENTRY) This high quality dual flush cistern features a WELS approved 3 star rating and a reversible inlet valve. Additionally, its water saving half flush feature means it is environmentally friendly. Features and Benefits: Assembled with approved high quality inlet and outlet valves Water saving half flush feature Adjustable inlet and outlet valves for setting the required flushing volume