NDS SLIM CHANNEL GRATES Material: Polypropylene Colors: White, Gray & Sand come with UV inhibitors Weight: 0.36 lbs per grate Fits: NDS Slim Channel Drains Size: Grates are 3’ long x 2 1/4” wide Overlapping lip is 1/8” thick Load rating: Pedestrian loads only Opening Size: 0.248” Open area: 7.01 sq. in / linear foot Flow Capacity: 21.44 GPM / linear foot Square Deco Grate  White—#9251  Sand—#9252  Gray—#9253 Opening Size: 0.246” Open area: 5.73 sq. in / linear foot Flow Capacity: 17.53 GPM / linear foot Chain Deco Grate  White—#9261  Sand—#9262  Gray—#9263 Opening Size: 0.233” Open area: 7.09 sq. in / linear foot Flow Capacity: 21.69 GPM / linear foot