Modular slimlines are a conventional way of adding extra modules to get more water. Simply pick your Width and Height then choose your Litres and Length. Sort by NewestSort by Name Price: - Tall Slimline (9) Super Slimline Budget Slimline Stubby Slimline Eco Slimline Tall Slimline Short Slimline Slimline Low Slimline$1,030.00 Extra Low Slimline