Spears Schedule 40 PVC Riser Extension (FPT x MPT) is designed to extend or adjust pipe height in pressure piping systems while maintaining reliable flow performance. Features female and male threaded connections for secure, leak-resistant installation and easy system adjustments. Made from durable, corrosion-resistant PVC for long service life. Manufactured to ASTM D1784 standards, NSF/ANSI 14 and 61 certified, and compliant with CSA B137.6. Ideal for industrial, commercial, plumbing, and irrigation applications.