I hate crimping hoses so I bought several end caps. They work great and you can unscrew the cap if you want to flush out your system or when you are messing around with the pressure.

I Bought this option for closing off the end of the Poly Tubing. I was able to easily take off the Cap and Flush out my system. Great Product!

I use them to connect old garden hose to run where I do not want the poly line to run.. very easy to use and install.