If you’re looking to build a linking kit or attach some hose to your tank or water butt, this Hose Tail is also suitable for use with our 20mm I.D. / 25mm O.D. Extension Hose. Most water butts will be compatible for use with this Hose Tail as it can accommodate any water butt with a wall thickness of up to 4mm. As shown in the image below the Hose Tail can be placed through a pre-drilled connection point with an inside diameter of 20mm: Once it’s been properly secured you can attach this extension hose to it to create a linking kit or an overflow pipe.