This Hose Tail has an outside diameter (O.D.) of 20mm, making it suitable for use with a water butt or tank that has a connection point with a 20mm inside diameter (I.D.). The removable nut and washer mean that this Hose Tail can accommodate a tank wall thickness of up to 8mm. 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 .
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