| Grade | Generic | Region\Company |
| Network Polymers HDPE NPP 50-0151 | HDPE | North America - Network Polymers, Inc. |
| Network Polymers HDPE NPP 50-0158 | HDPE | North America - Network Polymers, Inc. |
| Network Polymers HDPE NPP -50-0350 | HDPE | North America - Network Polymers, Inc. |
| Network Polymers HDPE NPP 50-0355 | HDPE | North America - Network Polymers, Inc. |
| Network Polymers HDPE NPP 50-0863 | HDPE | North America - Network Polymers, Inc. |
| Network Polymers HDPE NPP 50-1052 | HDPE | North America - Network Polymers, Inc. |
| Network Polymers HDPE NPP 50-1111 TF20 | HDPE | North America - Network Polymers, Inc. |
| Network Polymers HDPE NPP 50-2053 | HDPE | North America - Network Polymers, Inc. |
| Network Polymers HDPE NPP 50-5052 | HDPE | North America - Network Polymers, Inc. |
| Network Polymers HDPE NPP-50-0252 | HDPE | North America - Network Polymers, Inc. |
| Network Polymers HDPE NPP-50-0753 | HDPE | North America - Network Polymers, Inc. |
| Network Polymers HDPE NPP-50-1060 | HDPE | North America - Network Polymers, Inc. |
| Network Polymers HDPE NPP-50-2000 | HDPE | North America - Network Polymers, Inc. |
| Network Polymers HDPE NPP-50-2753 | HDPE | North America - Network Polymers, Inc. |
| Network Polymers HDPE NPP-50-4052 | HDPE | North America - Network Polymers, Inc. |
