Bulkhead fitting for most cylindrical coolers with a maximum usable clearance of about 5/8" (this is the maximum thickness cooler wall that will still allow you to mount a ball valve on the bulkhead).
Cooler Bulkhead Instructions
Bulkhead fitting for most cylindrical coolers with a maximum usable clearance of about 5/8" (this is the maximum thickness cooler wall that will still allow you to mount a ball valve on the bulkhead).
Cooler Bulkhead Instructions