Spears Schedule 40 PVC fi tting designs combine years of proven experience with computer generated stress analysis to yield the optimum physical structure and performance for each fi tting. Material reinforcement is uniformly placed in stress concentration areas for substantially improved pressure handling capability. Resulting products are subjected to numerous verifi cation tests to assure the very best PVC fi ttings available. Smooth interior walls result in lower pressure loss and higher volume than conventional metal fittings. Specifications: 1.5" coupling (Sx FPT) PVC White