Pipe is made of PVC and meets ASTM D-2729 requirements. Styrene fittings meet ASTM D-3034 requirements. For sewer, septic tank, and drainage use. Cuts easily with a hand saw, joins with a brush-on welding solvent. Spigot x hub. 4" sewer x 1-1/2" PVC-DWV. Adapts a sewer and drain fitting hub to schedule 40 IPS (700 series pipe size). Size 4”.