Siamp 99T 1/2" Plastic Valve. Model Number: 30998010. Material: Plastic. Suitability: Suitable for a variety of bottom entry toilet cisterns. Package Dimensions: 10.4 L x 7.2 H x 36.8 W (centimeters), Weight: 0.55 pounds. Manufacturer: Siamp. Features & Benefits: Low pressure, Compact with telescopic adjustment, Bottom Entry Telescopic inlet valve, Can be installed into ceramic or plastic cisterns, recessed or low level cisterns, for replacement or as original equipment, Hydraulic closure (no water hammer shock), Adjustable water level, Quiet, Anti-backflow function. Available with 3/8” brass, 1/2” brass and 1/2” plastic end-fitting. Flow rates and pressure function ranges vary depending on the end-fitting.