DIVERSITECH, P-TRAP, 489 Series, Slip End, Plastic, 3/4 in Nominal Size, White, 40 Schedule Rating, ASTM Standards D2466, D1784, F1498, 8 in L x 4.75 in W x 1 in H Streamline® PVC Schedule 4 Pressure Fittings are renowned for superior strength and enhanced performance. With a full line of diameters and styles, our fittings are designed and tested under real world "cyclic" pressure conditions so they excel in extreme applications where lesser products often fail. Along with superior strength, our pressure plastic fittings offer smooth inner walls for low pressure drops and superior resistance to chemicals and corrosion.