Siamp 99T Telescopic Inlet Valve 1/2" Plastic This telescopic 1/2" plastic inlet valve is perfect to improve a tired old cistern, making your toilet more streamlined and run smoothly and trouble free!! Siamp is unanimously considered to be a worldwide leader in innovation and modern technical solutions in the sanitary market. Every product designed and manufactured by Siamp encompasses their main principles of efficiency, viability and sustainability. This is perfectly reflected in this 99T inlet valve, which is why it is one of the most widely used plumbing replacement parts for toilets with a plastic or ceramic cistern. The inlet valve body is constructed from strong white plastic with a high quality finish. This inlet valve has a plastic thread made from rugged and strong ABS, .