Evolution Series Structural Foam Basins

TOPP’s new structural foam basin line — the Evolution E-Series — has been engineered to provide the ultimate blend of durability and design. The result is a rugged structural foam basin with all of the industry leading features you need, at a price you want.

E-series basins are available in diameters up to 30” and accommodate not only E-Series structural foam covers but also TOPP epoxy coated steel and non-skid Fiberglass covers as well.

Standard Features

  • Engineered to incorporate the ultimate blend of value and improved design features into a single platform
  • 180° flat pockets for positive grommet seal
  • Self-tapping hardware – no inserts to corrode or protect
  • No external stacking ribs to interfere with external filtration
  • All covers gas and odor tight with included gasket kit
  • Approved for use in radon mitigation applications
  • Improved design provides increased structural integrity with less material for improved value and ease of handling
  • Accommodates 4” composite inlet hubs

No Grommet

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