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2015 International Residential Code and Commentary, Volume 2 (IRC) - Chapter 32: Traps - P3201.2 Trap seals.
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Trap primer needed on unused floor drain? | Terry Love Plumbing Advice & Remodel DIY & Professional Forum
![Zurn P415-4NH-P-SA Cast Iron Floor Drain Body with 4" No-Hub Outlet and 1/2" Trap Primer Connection for Z415 Series Drains, Drilled for Stabilizer Assembly Zurn P415-4NH-P-SA Cast Iron Floor Drain Body with 4" No-Hub Outlet and 1/2" Trap Primer Connection for Z415 Series Drains, Drilled for Stabilizer Assembly](https://www.webstaurantstore.com/images/products/large/556493/2048235.jpg)
Zurn P415-4NH-P-SA Cast Iron Floor Drain Body with 4" No-Hub Outlet and 1/2" Trap Primer Connection for Z415 Series Drains, Drilled for Stabilizer Assembly
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