All 8" Internal Width Channels Polymer Concrete Home » Products » Trench Drains » Polymer Concrete » Polymer Concrete Channels » 8" Internal Width Channels Polymer Concrete T1700-PB-13 8″ Internal Width Polymer Concrete Channel with Galvanized Steel Edge Rail T1700-PB-3 8″ Internal Width Polymer Concrete Channel with Stainless Steel Edge Rail T1700-PB-4 8″ Internal Width Polymer Concrete Channel with Ductile Iron Rail T1760-PB-13 8″ Internal Width Shallow Polymer Concrete Channel with Galvanized Steel Edge Rail T1760-PB-3 8″ Internal Width Shallow Polymer Concrete Channel with Stainless Steel Edge Rail