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RD-4A RR (Aluminum), RD-4C RR (Copper), RD-4SS RR (Stainless Steel) Retrofit Roof Drain with optional T-7 Flow Control Accessory, T-5 Sediment Collar and T-12 Stainless Steel Ballast Guard (illustrted). Recommended Use: All purpose drain for flat roofs in existing construction employing conventional roof membrane application or inverted roof membrane with ballast guard. Suitable for PVC, cast iron, steel, copper, or other type leaders. |
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