4 points: a hose with an inner diameter of 16 mm and an outer diameter of 22 mm (note that it cannot be connected to a hard tube)3 points: a hose with an inner diameter of 12 mm and an outer diameter of 16 mm (note that it cannot be connected to a hard tube)Flow flow, self-contained water pipe fixing nut, convenient and fast, no water leakage
4分:接内径16毫米 外径22毫米的软管(注不能接硬管使用的)
3分:接内径12毫米 外径16毫米的软管(注不能接硬管使用的)
流流量,自带水管固定螺母,方便快捷,不会漏水