Description:

22" x 22" 2-piece. Base is fully compatible with all siding profiles. Install the base with the siding and snon the cover later. Will ventilate 37. 4 net free sq. in. Outside diameter 22". Base dimensions 10-1/2" x 15". Siding receiver 5/8" to 1-1/4" in 1/8" increments. Model # OCTGV22 PW.