The 18″ square micro mesh fiberglass grate with 1.5″x1.5″ openings mesh grate is ideal for yard drains to collect surface water and minimize the amount of debris that enters the system. This rust, corrosion and chemical resistant FRP grate can be used with the 18-inch NDS catch basin, riser, or low-profile adapter to drain heavy flows of excess storm water from driveways, patios, sidewalks and landscaped areas.
Load Class A
Actual Dimensions: 16-3/4″ x 16-3/4″ x 1″
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* Load class ratings for entire systems will always be determined by the lowest class within the system. For example, if the channel is rated as a C and the grate is rated as a D, the overall system will be rated as load class C. The same is true should the channel be rated as load class C and the grates are rated as load class A; the system as a whole would be rated as load class A.