Lambro 1475W White Plastic Louvered Vent, 3-Inch PLASTIC VENT - 3 white plastic louvered vent.Preferred hood with tail pipe. KEEP ELEMENTS OUT - Opening/closing flaps prevent outside elements from entering the vent. UV INHIBITOR - UV inhibitor is used to help prevent the premature fading of vent. DIMENSIONS - Product dimensions: 6 x 6 x 1.5.Includes removable screen to protect against the elements. EASY INSTALLATION - Secure outside wall with four screws.