Clear plastic windscreen washer tubing sold by the metre only. This is the larger size and was known as 1/4" bore because
GWW201M is 1/8" bore. This hose is actually now known as 4.8mm which is nearer 3/16".
this was known as 1/4" hose before decimalisation or 5mm but it is the larger bore size 3/16" 5mm but is corect for the largest bore size used on the mini.