CAN-SB anti-foam directly connected to the deck fill, avoids that foam and fuel come out during the filling of the tank, coming back into the body of the anti-foam which transforms the foam in liquid and send to the tank. Provided with 2 rubber adaptors complete of clamp to connect to the deck fill diam 38 and 50. Connection with tank provided by 2 hose connectors diam. 38 and 50.