• Non-Toxic : No heavy metal additives, would not to be covered with dirt or contaminated by bacterium.
• Corrosion Resistance : Resist chemical matters and electron chemical corrosion.
• Low Installation Cost : Light weight and ease of installation can reduce installation cost.
• High Flow Capacity : Smooth interior walls result in low pressure loss and high volume.
• Longevity : More than 50 years under proper use.
Nom. Size : 40 mm