Harvel LXT® piping is produced to Schedule 80 dimensions in strict accordance with ASTM D1785, and exhibits a Type II pressure rating. Harvel LXT® fittings are produced to Schedule 80 dimensions per ASTM D2467. Joining of product produced to the dimensional requirements of these standards ensures that strong connections with good pressure-bearing capability can be made up quickly and consistently using common, inexpensive tools. Utilizing these dimensions provides a higher pressure-bearing capacity compared to other “clean” systems on the market, and permit the use of standard socket dimensions.