... present.Ideal for canopies, dock areas, refrigerated areas, food processing and any other nonhazardous environments.Housing is one ... molded, impact resistant,UV stabilized, fiberglass reinforced polyester,with inverted “U” slot that allows diffuser to nesttightly. ... ,UV stabilized, clear polycarbonate. It is securedin place with eight polycarbonate cam latches.Optional stainless steel latches are ...