Product review (5 stars): CSST Pipe review
This is a great product.  It allowed me to install quickly and easily.  Ran lines to outside Bar-B-Q Grill, New Gas Stove and New Gas Water Heater.  Savings from lower price of natural gas will repay this investment in less than two years.  And, NO MORE PROPANE to refill!!!  Even more savings....not to mention hassle.