Spears® gallon size PVC-17 Heavy Body Gray Cement. Heavy bodied, medium setting PVC cement for use on all classes and schedules of PVC pipe and fittings up to 12-inch diameter (interference fit) and non-pressure pipe up to 18 inches. Suitable for gap filling on large diameter piping. Low VOC, complies with SCAQMD 1168/316A and ASTM D2564. NSF certified for potable water, DWV, and sewer applications. Gray color matches standard gray PVC for clean, uniform finish. Shelf life: 3 years.