... 4) size: 1/2" or 3/8" toilet bottom fill valve 1).the main body is plastic.2) total ... valve size: 1/2" or 3/8"5) water level adjustable by adjusting float position.6) we are specialized in water tank ... such as basin drainers, bathtub drainers,sink drainers,water tank fittings,WC connector , stamping parts,machining parts,and ... , welcome potential buyers to contact us. toilet bottom fill valve fitting