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Designed for use with 12-inch by 12-inch catch basin Series for the purpose of outdoor drainageThis 12-inch by 12-inch Square galvanized Steel grate is recommended for heavy-duty pneumatic tire forklifts and tractor trailers at speeds less than 20 mph
12-inch Square heavy duty galvanized Steel Bar grate
Open surface area 122.30 Square inches
160.21 GPM flow