The basin has an overflow hole, choose an overflow drainer Schematic diagram of the basin structure: The design of the overflow hole is to prevent water from overflowing from the mouth of the basin when it is overfilled. With the overflow hole design, when the water level in the basin reaches the position of the overflow hole on the basin wall, the water will flow into the basin spacer through this hole, and flows from the overflow hole of the drain to prevent flooding! Silicone gasket: made of ABS engineering plastic, thickened, safe and non-toxic Large Thickened Nut: Made of New Aircraft Material, No Tools Required, Easy to Install Refined Pure Copper Copper Tube: Durable, Rustproof Rebound Drain: Sealed Bouncer High quality stainless steel to avoid secondary pollution of water source Tight thread mouth: adopts tangential thread rolling process for fine thread, strong reinforcement and not easy to loosen
