34 IN x 22 IN 2-piece. Base is fully compatible with all siding profiles. Install the base with the siding and snap on the cover later. Ventilated opening: 20 IN x 14 IN. Outside unit dimensions: 34 I... (Options & Sizes)
18 IN x 18 IN 2-piece. Base is fully compatible with all siding profiles. Install the base with the siding and snap on the cover later. Ventilated opening: 10 IN x 12-1/2 IN. Outside unit dimensions: ... (Options & Sizes)
18 IN x 18 IN 2-piece. Base is fully compatible with all siding profiles. Install the base with the siding and snap on the cover later. Ventilated opening: 10 IN x 12-1/2 IN. Outside unit dimensions: ... (Options & Sizes)
14 IN x 22 IN 2-piece. Base is fully compatible with all siding profiles. Install the base with the siding and snap on the cover later. Ventilated opening: 10 IN x 12-1/2 IN. Outside unit dimensions: ... (SEE DETAILS)
2-piece. Base is fully compatible with all siding profiles. Install the base with the siding and snap on the cover later. Rectangular 18 IN x 24 IN: Ventilated opening 16 IN x 20 IN; outside unit dime... (Options & Sizes)
2-piece. Base is fully compatible with all siding profiles. Install the base with the siding and snap on the cover later. Square 14 IN x 14 IN: Ventilated opening 10 IN x 12-1/2 IN; outside unit dimen... (Options & Sizes)
