Fiberglass mesh Class B grate for the 3000 Series by Trench Drain Systems™. Normally used in areas where extreme chemical resistance is needed but with no heavy loads.  Mesh openings measure 1-3/16″ square. Gritted top non-slip surface. Locking devices not included (DA3042M)

Material: Fiberglass reinforced Isophthalic Polyester Resin (FRP)

Nominal measurement: 8″ x 48″