Fire proof
Strong
Rust free
Longevity
UV safe for exterior use
No need for welding
Suitable for installation in limited area
Specially designed seals
for high working pressure
Welding seals are susceptible to rust
Pipe clogged by rust
Leakage causes by rust
Plastic pipe also suffer for U.V. problems
Flammable plastic pipe causes noxious toxic funes when burning
PVC is not strong leaks and cracks