I have a Laars Lite LD400N heater - 14 years old. The siphon tube that connects the pressure switch to the header sprung a leak. It is a simple connection to each side with brass compression fittings. Can I just get copper tubing and fittings from Pep Boys and replace it? The online price is about $50 for a $10 part.
Yes or brake line tubing will work each end have flared fiitings.