These Staple Guns are professional tools that do an excellent job stapling Onix and PEX in both Staple-Up, thin-slab and sleeper projects.
The stapler comes up with both PEX and Onix guides. Just change the guide for the tubing application.

Stand up like a man instead of crawling around on the floor stapling down tubing. The extension arms and guns allow you to do installations with your feet firmly planted on the floor.