1.High Flow Capacity: smooth interior walls and low friction result in low flow resistance and high volume.

2. Corrosion Resistant: non-conductors of electricity and immuning to electrochemical reactions caused by acids, bases, and salts that cause corrosion in metals.

3.Lower Installation Costs: lightweight, ease installing by solvent cement or gasket, reducing installation costs as much as over 50% comparing with metal fittings.

4.Longevity: more than 50 years of usage under normal conditions.

5.Environment-friendly: it can be recycled.