Truly universal: fits all existing R.O.'s. This vent covers all existing screw holes. One-piece seamless frame, deep drawn metal base. Covers all interior stains left by former garnish rings. Positive-seal weather stripping is leak resistant and water tight. Is interchangeable with existing Ventline products. Self-centering metal base with radius corners. Interior garnish with wider 1-1/4" flange and radius corners.
