Foam Trench Drain Systems

MEGAMAX® INSTA-POUR® is a pre-engineered, cast-in-place concrete forming system for forming surface drainage trenches, catch basins, utility chases and voids in concrete placements. The system includes expanded polystyrene (EPS) form profiles, steel inlay rails, patented no-float legs, grates and grate retainers. MEGAMAX® INSTA-POUR® is available in various widths, depths, slopes and trench bottom configurations.