The Thomas Dudley Beta+ Telescopic Bottom Inlet Float Valve (Part Number: 327645)
 is a highly adjustable cistern fill valve designed to fit virtually all float-operated toilet cisterns. It is characterized by its durable brass tail, which prevents cross-threading during installation. 
Key Technical Specifications
Adjustment Range: The telescopic valve height can be adjusted from 203mm to 292mm (approx. 8" to 11.5").
Float Arm: Features a unique swivel design that allows for 180-degree adjustment and an extendable arm length from 185mm to 285mm.
Connection: Standard 1/2" BSP brass tail.
Compatibility: Suitable for low-pressure (0.1 bar) and high-pressure (up to 14 bar) systems.
Standards: WRAS approved and manufactured to BS 1212-3 standards.