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OMG Roofing Products OMG Aluminum O-Ring RetroDrain for Existing Drain Leaders, 2 in. and 8 in.
Regular price $325.00Orders start at $399 — combine any items to reach the minimum. Learn more
OMG Roofing Products OMG Aluminum O-Ring RetroDrain for Existing Drain Leaders, 2 in. and 8 in.
The OMG O-Ring RetroDrain retrofits existing drain leaders smaller than 3 in. or larger than 6 in. without work inside the building. Each drain has four rubber O-rings for a watertight seal, a U-Flow cast aluminum strainer dome and an aluminum clamping ring. Sold per piece; 2 in. and 8 in. sizes are offered, with other sizes available custom made.
Key Features:
- Watertight O-Rings: Four rubber O-rings create a watertight seal inside the existing drain leader.
- Seamless Body: The 2 in. and 8 in. drains use a one-piece seamless body that eliminates leaks from poor welds at the stem and flange connection.
- Aluminum Dome: Ships with a U-Flow cast aluminum strainer dome and aluminum clamping ring.
- Vortex Breaker Option: Can be retrofitted with the yellow Vortex Breaker Strainer dome.
- Rooftop Retrofit: Installs from the rooftop, saving time and money without disturbing building occupants.
- No-Rust Aluminum: Cast aluminum dome and clamping ring will not rust for long-term performance.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | OMG Roofing Products |
| Sell unit | 1 piece |
| Product line | OMG O-Ring RetroDrain |
| Available sizes | 2 in., 8 in.; other sizes available on a custom made basis |
| Material | Aluminum body, cast aluminum strainer dome, rubber O-rings |
| Color / finish | Mill (aluminum) |
| Nominal size | 2 in. or 8 in. |
| Dimensions | One-piece seamless body on 2 in. and 8 in. sizes |
| Pack quantity | 1 per piece |
| Intended use | Retrofit of existing roof drain leaders smaller than 3 in. and larger than 6 in. |
| Application | Retrofit drain installation from the rooftop |
Fit and Compatibility:
Designed to fit existing drain leaders smaller than 3 in. and larger than 6 in., connecting to PVC or cast iron leader lines via the O-ring seal. Pairs with OMG retrofit drainage products; the yellow Vortex Breaker Strainer dome is a separately available retrofit option.
Frequently Asked Questions (FAQ):
Q: What is included with each drain?
A: Each piece includes the aluminum drain body, a U-Flow cast aluminum strainer dome and an aluminum clamping ring, with four rubber O-rings for the seal.
Q: Which size should I order?
A: Choose 2 in. for leaders under 3 in. or 8 in. for leaders over 6 in.; other sizes can be custom made.
Q: Do I need to work inside the building?
A: No, the retrofit design allows installation entirely from the rooftop without disturbing occupants.
Q: Will it rust?
A: The body, dome and clamping ring are aluminum, which will not rust.
Q: Can I add a Vortex Breaker dome?
A: Yes, the drain can be retrofitted with the yellow Vortex Breaker Strainer dome.
Q: Is the body seamless?
A: Yes, the 2 in. and 8 in. drains have a one-piece seamless body, eliminating potential weld leaks.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
RetroDrains are the go-to choice when replacing a failed drain body without tearing into the building interior. Verify the existing leader size before ordering, since the O-ring seal depends on matching the pipe diameter. For roofs with heavy debris or siphonic concerns, the Vortex Breaker Strainer dome is worth adding.
Follow fall-protection requirements and confirm the existing leader condition before cutting in, and follow local plumbing and roofing codes for the retrofit.
Order the OMG Aluminum O-Ring RetroDrain for a watertight rooftop drain retrofit.
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