Float in one-piece, easy to adjust the water level, close instantaneously. Lower float design, wider adjustable range, more suitable for low toilet. Fill valve will shut off automatically and stop filling water when flush valve aswell as any other tank sealing parts isn' t sealing well. Auto-lock mechanism, easy for adjustment. Height adjustable 8" - 13” . Water pressure range 0.2-16 bar . Special design, insensitive to impurity in water.