Construction Specialties sand trap louvers are specially designed to protect air intake from wind-driven sand. Our unique design combines rows of vertical blades to separate sand from the air stream. The sand is then safely channeled away on the sloping sill of the louver.
S 4770 – 4" (101.6 mm) Vertical Blade Sand Trap Louver. The sand rejection performance is based on a 39.370" x 39.370" (1 m x 1 m) louver core area.
S 4770RS - 7" (178 mm) Vertical Blade Sand Trap Louver plus 3" continuous front line blade.
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