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Description
The Marathon RD-27 is an epoxy-coated cast iron scupper roof drain for parapet applications, supplied with a flashing clamp and secured angled grate. It is standard with a no-hub outlet; options include a threaded outlet, flat grate, nickel bronze grate/frame, vandal-proof grate, galvanized finish, and a 45-degree outlet (no-hub only). Available in 2″, 3″, 4″, and 6″ sizes mapped to SKUs BS-1175, BS-1180, BS-1185, and BS-1190.
Key Features:
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Epoxy-coated cast iron construction for long life and durability
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Flashing clamp with secured angled grate (standard)
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No-hub outlet standard; threaded outlet optional
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45-degree outlet option (no-hub only)
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Available in 2″, 3″, 4″, and 6″ sizes
Specifications
- Type: New Installation / Direct Connect
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Material: Cast iron, epoxy coated
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Standard grate: Angled; optional flat grate
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Optional finishes/components: Nickel bronze grate & frame; vandal-proof grate; galvanized finish; threaded outlet; 45-degree outlet (no-hub only)
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Free area: 15 square inches
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Overall dimensions (typ.): 6″ high × 11″ wide
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Connection: No-hub (standard); threaded (optional)
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Size / Part numbers: 2″ – BS-1175; 3″ – BS-1180; 4″ – BS-1185; 6″ – BS-1190
How To
- Prepare the sidewall/parapet opening and membrane per project requirements.
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Select the outlet style (no-hub standard; threaded optional). For 45-degree orientation, use RD-27-45 and reposition the outlet per the product instructions.
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Set the RD-27 body in the opening and align the outlet to the piping.
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Install the flashing clamp to secure the membrane to the drain body.
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Install the secured grate (angled standard or optional flat grate).
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Complete the connection to the drain line and verify watertight assembly.
FAQs
Q: What sizes and SKUs are available for the RD-27?
A: 2″ (BS-1175), 3″ (BS-1180), 4″ (BS-1185), and 6″ (BS-1190).
Q: What is the free area?
A: 15 square inches.
Q: What grate options are offered?
A: Angled grate is standard; flat grate is optional. Nickel bronze grate & frame and vandal-proof grate are available options.
Q: What outlet types are available?
A: No-hub is standard; a threaded outlet is optional. A 45-degree outlet is available for no-hub only (RD-27-45).
Q: What is the construction material and finish?
A: Epoxy-coated cast iron; galvanized finish is optional.
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