Eddy Flow is a specially engineered replacement for schedule 10, offering better flow characteristics while providing design flexibility. This product is FM approved, as well as UL listed (for U.S. and Canada) for roll grooving and welding for use in fire protection systems with a working pressure of 300 psi or less. Please check with appropriate sources for up-to-date listings and approval information.  As an added benefit, it is more economical to use than schedule 10 due to reduced delivery costs and ease of handling. Furthermore, Eddy Flow’s larger ID provides an opportunity for downsizing and further cost savings.