450 Litre Flat Water Tank. The item "450 Litre Flat Water Tank" is in sale since Tuesday, November 5, 2019. This item is in the category "Home, Furniture & DIY\Household & Laundry Supplies\Cleaning Tools\Squeegees & Window Cleaning". The seller is "shauna09nick" and is located in Sheffield. This item can't be shipped, the buyer must pick up the item.