Do it Best offers convenience with this handy primer and wet set PVC twin pack, perfect for DIY applications. Designed for use in moist or wet applications, the medium-bodied, fast-setting blue cement works on all schedules and classes of PVC pipe and fittings up to 6 in. diameter with interference fit. Purple primer softens the pipe surface to allow a fast, secure solvent weld. Package includes (1) 4 oz. purple primer and (1) 4 oz. blue wet set PVC cement.