Regulator hoses also need new O-rings during service but due to sharp threats, many of these O-rings
get damaged at the installation process.
Using this tool the O-rings stay in perfect shape,
just place the tool over the hose and slide the O-ring in place.
Used to insert O-ring into the main body of
a Scubapro MK10 first stage.
With this tools the job is done in a matter of seconds.
Place 2 of the parts of this tool set on the top and
bottom of the first stage body and push the O-ring
into its place with the small rod of the tool set.