Buy a Water Butt Filler Kit Online
This can fit pipe diameters from 50mm – 102mm. Please note that you will need to cut your existing down pipe to fit this device (approximately 125mm ). This connector allows you to divert some rain water from an existing down pipe on your house or greenhouse. The design of it means it can be adjust to fit different pipe diameters. Only a few of the rain water is diverted, and the rest passes through the device.