Tupperware Fridge Smart 3 way venting system Storage Container

Tupperware Fridge Smart 3 way venting system helps regulate the atmosphere by balancing the flow of oxygen and carbon dioxide out.Tupperware created this systemACE ( Atmosphere controlled environment) to keep food longer Height 11” approximately Width 4.5” approximately Length 7” approximately Preowned Good Condition Some scratches on the outside And inside Welcome all offers