Grants IN/OUT Nozzle administers fluid, and then has a separate tube for evacuating the fluid. It is meant to drain into a toilet or drain. A custom nozzle designed to allow water to flow in, then out, without removing the nozzle. It has a whopping 1/2″ hole through the center. You can hook as many bags to it as your imagination allows and let the water flow out from the very large output. 1/2″ latex tubing on the discharge end and 5/16″ on the inside. It works well with the 5 quart enema bag we have for sale.