Zenith Model B  Zenith Carburetor Zenith Carb . The carburetor goes off a 6 cylinder boat motor. No cracks etc, the inside of the float bowl has some scale etc photos. The throttle and choke butterflies both move. The throttle butterfly does not have side to side play. There is a b marked on one side of the carburetor. The finish has rusting etc.The carburetors being sold for parts not working due to it will need a carb  kit and clean etc. please look at photos for style and condition, being sold as is no warranties or refunds Express or implied, thank you..