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Drainable
LF-21A
Galvanized Steel, 4" Deep, Heavy Gauge, Drainable Adjustment Type Blade
Free Area: 5.28 sq ft (0.49 sq m) = 33% for 48'' x 48'' (1.22m x 1.22m) test size
LF-31A
Galvanized Steel, 6" Deep, Heavy Gauge, Drainable Adjustable Type Blade
Free Area: 8.17 sq ft (0.759 sq m) = 51% for 48'' x 48'' (1.22m x 1.22m) test size
LF-33A
Galvanized Steel, 6" Deep, Heavy Gauge, Drainable Adjustable Type Blade
Free Area: 6.55 sq ft (0.609 sq m) = 41% for 48'' x 48'' (1.22m x 1.22m) test size