1) toilet side inlet valve 2) material: brass thread 3) water level adjustable 4) size: 1/2" or 3/8" toilet side ... /2" or 3/8"5) water level adjustable by adjusting float position.6) we are specialized in water tank series.7) >ISO 9001:2008 ... sanitary parts, such as basin drainers, bathtub drainers,sink drainers,water tank fittings,WC connector , stamping parts,machining parts,and rubber ...