6523 Lids. You can store more in less space. Two lid sizes fit all Carb-x® and Dur-x® Space Saving Containers. Snap-tight fit reduces leakage and keeps food fresh. Fits 11.4L, 17L, 20.8L Space saving containers.
6509 Lids - Two lid sizes fit all Polycarbonate (clear) and Polyethylene (white) Space Saving Square Containers. Snap-tight fit reduces leakage and keeps food fresh.It fits 1.9L, 3.8L, 5.7L, and 7.6L space saving containers.