Designed without gussets, the star seal eliminates gaps along the seal where leaks can occur. The bag more easily conforms to the shape of the container and distributes weight evenly. Star seal liners maximize carrying capacity virtually eliminating leaks. Star seal liners are designated by two dimensions, e.g., 40 x 46.
A flat style bag manufactured with both sides tucked in to form gussets. Where indented, the bag is sealed through four layers of film while the middle of the bag has only two. Gusseted seal liners are designated by three dimensions, e.g., 23 x 17 x 46.
A flat seal is a two-dimensional bag with a bottom seal, much like a pillow case. Flat seals are generally leakproof but are clumsy to handle. Also, they do not conform well to the shape of most trash receptacles. Flat seal liners are designated by two dimensions, e.g., 40 x 46.