1. PVC material is not eco-friendly, HDPE material is environmential.it can be accepted by all countries. Some countries don't allow PVC material to import to pollute their land and environment.

2. PVC material is cheaper than HDPE material, because material cost is cheaper.

3. PVC material pot will have some small or big holes, which overseas customers called it inferior products, it won't happen in PE material.

4. PVC material is easily broken, HDPE is stronger. HDPE material has better strength.

5. PVC material will become fragile after winter, it may gets white year by year, but HDPE is still strong.

6. PVC material usually don't add UV additive, HDPE material usually add UV additive.

7. PVC material pot life span is shorter than HDPE pot, maybe 2-3 years shorter.