The Delchem B706A Straight Pedestal Ball Valve (also known as the Fluidmaster B706A or Opella B706A)
 is a 9.5-inch bottom-entry fill valve with an adjustable lever arm. It is a popular, durable, and WRAS-approved replacement part for most bottom-entry toilet cisterns. 
Key Technical Specifications
Overall Height: 9.5 inches (approx. 242mm).
Arm Length: The lever arm is extendable and can be adjusted from 6 inches to 9 inches (approx. 152mm to 229mm) to fit various cistern dimensions.
Connection: Features a 1/2" BSP plastic bottom-entry connection.
Pressure Compatibility: It is supplied with both a high-pressure restrictor (white, for 3-14 bar systems) and a low-pressure restrictor (red, for up to 3 bar systems), offering versatility for different water systems.
Safety Features: Incorporates an anti-siphon design to prevent the contamination of the fresh water supply.
Performance: Designed for a low noise, quiet, and efficient fill, which helps reduce water hammer.
Standards: It is WRAS approved.