Drain guards filter and reduce hydrocarbons, dirt, sand and stop other contaminants from entering and blocking the drain and sewer system. Quick and easy installation, simply lift the grate, lower the guard into position and replace the grate pinching the fabric in place to secure. Easily emptied and reused again. Exceeds 80% sediment removal efficiency. Dimensions length x width x height 1524 x 1524 x 458mm, weight 1kg.