Electric Water Pump Adapter Universal Portable Water Dispenser Adapter Water Pumping Device Adapter for Outdoor Water Tank. Features: Effortless Upgrade, Durable Material, Simple Installation, Universal Fit, No Modifications Needed. Specification: Origin: Mainland China, Material: High-Hardness And Wear-Resistant ABS, Color: Black, Size: Outer Diameter 6cm/2.36in, Inner Diameter 4.8cm/1.89in, Height 2cm/0.79in, Weight: About 17g/Piece, Purpose: Used To Replace The Lid Of The Bucket, Transfer The Electric Water Pump, And Realize The Function Of Automatic Water Pumping.