A unique paint cup system designed to increase productivity and reduce waste with versatile, multi-functional cups, liners, lids and more. � Mix, paint, and refill all in the same cup � One lid for all cup sizes to reduce SKUs � Disposable liner and lid save time and reduce use of cleaning solvent � Liners can be used as a vented or collapsable system � Liner locks into hard cup � Vented use provides non-restricted paint flow � Non-vented use gives the ability to paint upside-down � Removable filter element for higher viscosity liquids � Drip-resistant vent