The WaterUps short black overflow pipe is specifically designed for use in steel and corro garden beds that have walls less than 15mm thick.
The WaterUps black short overflow pipe is 20mm long and can be used in narrow-walled steel and corro garden beds. It is specifically designed for easy attachment, clicking into position on the underside of the WaterUps cell. It comes with a washer/seal and a nut. Short Screw Overflow Pipe Dimensions: 20mm(L) x 16mm(D)