UltraTech drain guard stays in place even with grate removed. Adjustable catch basin insert quickly re-sizes to fit almost any storm drain, no trimming of excess fabric required. Steel frame adjusts and keeps drain guard in place, preventing it from falling into the basin even when the grate is lifted. Heavy-duty hook-and-loop fasteners around the perimeter of the drain guard skirt keeps it secured to the frame. Quick and clean installation, no measuring or trimming required. Steel frame can be reused, replacement filter fabric available and is quickly and easily installed. Helps comply with NPDES, 40 CFR 122.26 (1999) and TMDL requirements. Performance: Up to 1.26 gallons (5 liters) of oil and up to 40-pounds (18 kg) of sediment.