The Grindmaster Crathco 99380 Seal Valve for the G-Cool series is an OEM replacement for the one that came with your unit. These seal valves help to prevent leaks on your faucet tap valve and keep your dispenser operating in top condition for as long as possible. They measure .6 inches in height with a .4 inch diameter.
Although sold individually, it is always a good idea to have spare seal valve on hand for quick replacements, should the need arise. For use with the Crathco Simplicity Bubblers.