

Colon tubes or rectal catheters are the tube that goes into your bum. These tubes attach to the end of the enema tubin and are inserted into the rectum.
As you can see from this picture colon tubes come in a variety of lengths and diameters. Honestly, I am not sure if you need 30 inches of tubing inside your colon. It seems like it would run out of places to go.
You can find an assortment of colon tubes here
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