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CSST has been linked to fires and natural gas leaks in the past, so it is important to make sure it is properly bonded and grounded to minimize this risk.
Flexible Gas Line
The tubing is more expensive than traditional black iron pipe, but it is much faster to install, taking only 1/3 of the time that would be needed to install black iron pipe. Therefore, when taking labor cost into account, CSST is often cheaper. CSST is $2 to $4 per linear foot, compared with $5 to $8 for black iron pipe.
Costs vary greatly by region (and even by zip code). To get free estimates from local contractors, please indicate yours.