The Cambro SFC12SCPP441 is a flat purple lid. Image shows container, which is sold separately. The item fits the 12 Qt. | 18 Qt. | 22 Qt. Camsquare Allergen-Free storage containers. Made with polycarbonate material, the lid is sturdy and creates a seal to prevent cross contamination. Purple color matches graduation markings on storage containers. Assists to clearly identify Allergen-Free storage. NSF listed.