PASSAVANT is a name used by the manufacturer ACO. To specify products related to drainage systems.
The lid is similar to another manhole cover made by the same manufacturer
Photographer’s note: This cover covers a grease separator (Fettabscheidee), preventing grease from floating into the savage. These devices are mandatory for restaurants and food production where cooking is involved. The device must be accessible for clearing the grease and forwarding it to recycling.