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* Estimated stock levels as of Tue, Oct 22, 2019. All items subject to prior sale. Prices may vary between stores and online. Please call ahead to confirm availablity of items marked as Limited Stock.
With 18 in L x 1 3/4 in W built-in lintel for new block, brick or frame foundation construction. Durable polypropylene construction. 40 square inches net free area. 1/8 in aluminum screen. 8 in x 16 in