Abstract: A container assembly and a method of constructing such an assembly has an outer container (1) a side wall (3) of which forms an open top, and has a blow moulded inner container (7) which forms a liner to the container (1). The liner (7) has a neck (8) which is secured to an internal flnage (4) extending from the outer container. The flange (4) may be moulded integral with either the lener (7) or the outer container (1). A lid (10) has and external annular recess (12) which snap engages with an annular rib (5) on the flange (4) to form a sealed chamber in the assembly.