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Manufacturer Resources
Product Specs
- Base Material:
- ABS
- Base Size Diameter:
- 3in
- Connection Type:
- ABS
- Volume:
- 1.172
- Department:
- Plumbing
- Product Group:
- Plumbing
- Product Subgroup:
- Drainage Products
- Product Type:
- Drain
- Product Finish:
- Cast Iron Grate
- Product Material:
- ABS
- Product Weight:
- 10.6
OATEY 88026 – Frequently Asked Questions
1) What pipe does the Oatey 88026 roof drain connect to, and is it solvent welded?
The 88026 is an all-ABS drain with an ABS connection, so it bonds to ABS DWV pipe with ABS solvent cement. There's no gasket, no caulk joint, and no threads to seal. If the roof leader on your building is cast iron or PVC, you either transition with the appropriate coupling ahead of the drain or pick a drain whose body matches the stack material.
2) What size outlet does the Oatey 88026 ABS roof drain have?
Base size diameter on the 88026 is 3 inches, so it drops into a 3 inch ABS leader. Size the drain to the stack you already have in the chase, not to the deck opening, since the dome and flashing collar sit well wider than the outlet.
3) Is the dome on the Oatey 88026 plastic or metal?
Metal. The strainer dome is cast iron while the drain body itself is ABS. That combination is the usual pick for a roof someone walks for maintenance: the cast iron dome takes foot traffic and ballast impact far better than a plastic strainer, and the ABS body keeps the weight and the corrosion issues down in the pipe run.
4) Should I use an ABS roof drain or a full cast iron one?
Go ABS when the roof leader is already ABS DWV and you want the lighter assembly to set on the deck; the 88026 pairs an ABS body with a cast iron dome so the exposed, walkable part is still metal. Full cast iron drains make more sense on a cast iron stack or where the whole assembly needs to be non-combustible. The 88026 weighs about 10.6 lb, which is one person handling it on a ladder rather than two.
5) What is the Oatey part number I order for the 6 inch ABS roof drain with the cast iron dome?
Order Oatey 88026. That single manufacturer part number covers the complete drain, body and cast iron dome together, so there is no separate strainer to add to the order.
6) Can I get full dimensional details before I cut the deck opening for this roof drain?
Yes. Oatey publishes a spec sheet for the 88026 that is linked from the product information, and it carries the dimensional layout for the body, dome height, and flashing area. Pull that before you cut, since the deck opening is driven by the body diameter rather than by the 3 inch outlet.
How fast can I get the OATEY 88026 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
U.S.
Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the OATEY 88026 come with a warranty?
Absolutely. The OATEY 88026 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the OATEY 88026?
You can call, text, or email our expert support team for fast answers. We’re here to help with
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selection,
installation tips, and troubleshooting. Contact Us
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and
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