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. How To Use The In and Out Enema Nozzle - This product doesn't come with instructions, so we have to provide some right here. 1. Purpose: The purpose of the In and Out Enema Nozzle is so that you can administer more than one cleansing cycle without removing and reinserting the enema nozzle each time. To do this, the nozzle comes attached to two different hoses, a thinner one to supply fresh enema solution from your enema bag or bucket and a thicker one to handle the evacuated waste. 2. Set-Up: To set up the In and Out Enema nozzle you will need the nozzle set, an enema bag set (like our gallon set) some enema solution, and someplace to send the waste (like the toilet). Also, some personal lubricant is a very good idea as the enema nozzle is not small. Set up the In and Out Nozzle by attaching the thin tube to your enema bag (use the clamp from your enema bag set on this tube). Then place the open end of the large tube in your waste receptacle. Close the clamp on the large tube and close the clamp on the small tube. Fill the enema bag (or bucket) with your solution of choice. 3. To Administer: To administer an enema, insert the nozzle, then open the clamp on the small tube to start the flow. When enough flow has been administered, close the clamp on the small tube. 4. To Evacuate: Be sure the open end of the large tube is in your waste receptacle, then open the clamp on the large tube and waste will evacuate. After evacuation is complete, close the large clamp. To administer another cycle, repeat steps 3 and 4. When complete, remove the nozzle, clean thoroughly, drain and allow to air dry completely.