What's Inside a Fuel Oil Line Check Valve

Close up look at the inside of a fuel line check valve. NEVER USE TEFLON TAPE on fuel oil lines!
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WARNING - Our videos are for entertainment purposes only. Do not attempt to work on or disassemble any part of your HVAC System if your not a Skilled Technician. You assume any and all responsibility. Working on HVAC Systems can be VERY DANGEROUS and should only be performed by Highly Trained Technicians.

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Видео What's Inside a Fuel Oil Line Check Valve канала Furnace Tech