RD-7A-8 or RD-7A-10 (Aluminum), RD-7C-8 or RD-7C-10 (Copper), RD-7SS-8 or RD-7SS-10 (Stainless Steel) Roof Drain all purpose drain for flat roofs in new construction, employing conventional roof membrane or inverted roof membrane with ballast guard. Suitable for PVC, cast iron, steel, copper, or other type leaders
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