Description: 【Innovative Design】 : Our drain fittings purchase thickened PP material made and steel ball, translucent grey visible with auto close a way check valve design, anti clogging, anti odour 【Multifunctional Adapter Drain】: Our drain adapter is suitable for kitchen sinks, bathroom sinks, RV sinks, bar sinks 【4 Way Drain】: Visual drain adapter with two 20mm diameter drains can be connected to overflow pipes, water purifiers, dishwashers, rubbish disposals and other appliances 【Easy To Install】: Our sink kits are easy to install with nut connectors for quick and easy installation, ensuring a solid connection 【Space Saving Side Drain】: Side drain design conserves space under the sink, allowing for better organization and storage, sewer hose adapter, waste hose supply Specification: Material: PP  Size: 14cmx5.8cmx7cm/5.51inchx2.28inchx2.76inch  Package Includes: 1 Visible Sink Drain Backflow Preventer  Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.