This is just the bulkhead fitting for the water coolers, in case you already have the ball valve. The regular bulkhead fits in most cylindrical coolers, including those orange ones from Rubbermaid. There is also an "XL" bulkhead for thicker walled coolers like the Coleman Ultimate Extreme.
The regular bulkhead has 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); the XL bulkhead has a maximum usable clearance of about 1 1/4" and a minimum usable clearance of 1" |