Brass Odor-Proof Floor Drain Insert – Backflow Preventer Plug

Keep Your Home Fresh with This Odor-Blocking Floor Drain Insert

Say goodbye to unpleasant sewer smells wafting up through your floor drains! This Brass Floor Drain Core features a gravity-operated, 90-degree opening and closing mechanism that lets water flow out quickly while sealing off sewer gases when dry. Whether you're upgrading your kitchen, bathroom, shower, laundry room, garage, or basement drain, this plug-and-play insert is a fast and affordable fix.

Made in Mainland China.

Why You'll Love It

• Gravity-Driven Drainage: The 90-degree open/close valve allows water to drain rapidly while automatically sealing shut to block odors and backflow.
• Thickened Silicone Seal: A leak-proof silicone liner creates an airtight barrier that keeps sewer gases where they belong — out of your living space.
• Built-In Filter Basket: The removable grille filter basket catches hair, debris, and other foreign objects before they clog your pipes, making cleaning a breeze.
• Durable Brass + PC Construction: Made from a combination of brass (copper ring), PC rubber, and a plastic filter for long-lasting, corrosion-resistant performance.
• 120mm Water Seal Height: Maintains an effective water seal to continuously block odors between uses.
• Plug & Play Installation: Designed for drains with an aperture of 36–39mm — no tools required. Simply insert and it's done.
• Versatile Use: Ideal for kitchens, bathrooms, showers, toilets, basements, garages, and laundry rooms.

Specifications

What's in the Box

• 1 × Floor Drain Core Insert

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For more information on maintaining proper plumbing and indoor air quality, visit the EPA Indoor Air Quality resource page.

Frequently Asked Questions

Q: What size floor drain is this insert compatible with?

A: This floor drain core insert is designed to fit drains with an inner aperture of 36–39mm. Before purchasing, measure your existing drain opening to confirm compatibility.

Q: How does this insert block sewer odors?

A: The insert uses a gravity-operated valve that stays closed when no water is flowing, combined with a 120mm water seal and a thickened silicone liner. This double barrier effectively blocks sewer gases from rising up through the drain into your home.

Q: Is this easy to install?

A: Absolutely! It's a true plug-and-play design — simply insert the drain core into your existing floor drain opening. No tools, adhesives, or plumbing experience are required.

Q: Can this be used in outdoor or high-moisture areas like garages and basements?

A: Yes! The brass copper ring and PC rubber construction make it resistant to moisture and corrosion, making it suitable for kitchens, bathrooms, showers, basements, garages, and laundry rooms.

Q: How do I clean the filter basket?

A: The grille filter basket is fully detachable. Simply lift it out, rinse off any captured hair or debris under running water, and reinsert. Regular cleaning helps maintain optimal drainage speed.