FAQs

What's the difference between the regular and the upgraded Drop-In vents?

The upgraded vent comes with a matching insert that pops in and out easily. If you don't have any spare flooring — or just want to change up your design between seasons — you can do it in seconds with the all-metal, matte black matching insert. Everything else (heavy-gauge metal build, tool-free fit, and high airflow) is the same as our standard Drop-In vent.

What types of flooring can I use with it?

It ships ready to install with the included insert, but if you'd rather use your own flooring, it supports all types — laminate, LVP, vinyl, hardwood, engineered hardwood, tile, ceramic, porcelain, cork, bamboo, and carpet — up to about 20 mm (¾ inch) thick.

My flooring is thinner than the vent tray — how do I get it to sit flush?

Just build up the base under your insert piece — thin plywood, underlayment, or spacers — until the flooring you drop in sits level with the surrounding floor. This lets you match almost any floor height for a seamless look.

What size do I need, and how do I measure?

Measure the duct opening in the floor — not your old vent's faceplate. The size refers to the hole it fits (a 4x10 fits a 4 in × 10 in opening). We offer 3x10, 4x10, and 4x12. Not sure? Send us your measurements and we'll confirm.

How does installation work — do I need tools?

No tools, screws, or drilling. Our compression-fit frame fits securely into the duct opening and sits level with your floor. Press to seat it, lift it out for cleaning. There's a short install video on the product page.

How much airflow do these provide, and are they noisy?

Our raised, damper-free plate delivers up to 60% more airflow than comparable flush vents and runs quieter — no louvres or moving parts means no rattle. They're non-adjustable by design, which is what maximizes airflow.

What's your warranty and return policy?

Every vent is backed by a 2-year warranty from Khan Supply CO, a proudly Canadian-owned business. Returns are money-back within 30 days with prepaid return shipping. Orders on khansupply.co ship free, and we usually reply within minutes. Amazon orders are returned through Amazon.

Do you have a referral program?

Love our products? Refer us and get 5% of the order value as credit.

Drop-in floor vent supports all types of flooring — Khan Supply CO

The choice is yours

Whether it’s natural wood, luxury vinyl, or polished concrete, our vents are made to match your style today - and your upgrades tomorrow. Built from solid metal, they’ll continue performing long after your flooring has changed.

Free shipping and returns

Combine our signature drop-in floor vents with our easy-install framed wall vents for a whole-house DIY upgrade.

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Save 13%
Black 4x10 drop-in flush metal floor vent shown at an angle — Khan Supply CO

Drop-In Floor Vent [Metal]

Sale price$29.69Regular price $34.99
Color
Color: Black
Size
Size: 4x10
Pack
Pack: 1 Pack
4.5
Black framed metal wall vent with a clean minimal frame — Khan Supply CO
Size
Size: 3x10
Pack
Pack: 1