-簡化麻煩的注油和與氣泡去除過程    -油管快接設計與內建塑膠管柱避免打破

Multiple Function

	Changeable Plunger Movement Plunger allows to move back and forth without turning control knob. Provides easy oil filling and air bubble removal.
	Built-in Channel Switch No need to connect 3-way stopcock. Allows to switch flow channel easily.
	Easy Tube Connection Insert tubing, tighten knob, that's all.
	Built-in Plastic Cylinder Provides clear visibility in plastic. Eliminate broken risk of cylinder in suddenly.