Noll/Norwesco LLC 556020 Galvanized Roof Ventilator

Noll/Norwesco LLC 556020 Galvanized Roof Ventilator Review

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Noll/Norwesco LLC 556020 Galvanized Roof Ventilator Feature

For composition or shake roofs. Large base offers added protection and ease of installation. All parts are fastened by rivets. No. 556042: RV038, 7 3 4'' baffle diameter opening, 17'' x 17'' base plate, 38 sq. in. free area No. 556159: RV038 brown, 7 3 4'' baffle diameter opening, 17'' x 17'' base plate, 38 sq. in. free area No. 556020: RV049, 9'' baffle diameter opening, 18'' x 18'' base plate, 49 sq. in free area

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