50-Pack Sheet Metal Hole Plugs for Plugging Combustion Test Ports
Metal plugs provide a tight tamper resistant test hole plug for combustion testing ports. Easy to snap in, these plugs are inexpensive and provide a more finished look than high temperature caulk.
- (1) 50 Pack 5/16" Metal Plugs
Drill a standard 5/16" hole for the combustion test probe
After the flue pipe is sufficiently cooled, press plug into hole. DO NOT burn your fingers on a hot pipe.
The plug should snap in and provide a tight fit. It can easily be pried out with a screw driver or grasped and pulled out with side cutters.
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