🎃 TRICK OR TREAT YOUR SMILE

Limited Sale: 10% OFF the COSLUS E40

The ADA Accepted cordless water flosser with 10-level pressure control. No tricks — just the treat your gums have been waiting for.

$35.99 $39.99 10% OFF

No code needed — the discount auto-applies at checkout.

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Get Mine — $35.99

Free shipping · 30-day money-back guarantee · 2-year warranty

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COSLUS E40 Cordless Water Flosser with 10-level pressure control

One Device, Every Routine.

Three reasons the E40 keeps winning against flossers that cost twice as much.

10-Level Pressure Dial

Turn, don't guess. Start gentle on sensitive gums, dial up for a deep clean — no harsh one-setting blast.

300 mL One-Fill Tank

A full 90-second clean on a single fill. No stopping halfway to refill like smaller compact flossers.

5 Tips in the Box

Standard, orthodontic, periodontal, and tongue-cleaning tips included — braces care and gumline care, no separate purchases.

COMPARE

Why Pay Double?

The E40 at its Halloween price, against the leading brand's best-selling cordless flosser.

	COSLUS E40 🎃	Leading Brand Cordless
Halloween price	$35.99 $39.99	$69.99
ADA Accepted	Yes	Yes
Pressure settings	10-level dial	3 presets
Tank capacity	300 mL	210 mL
Tips included	5	4

Real People. Real Results.

REVIEWS

Loved by Real Mouths.

★★★★★

Filling the tank is straightforward, and I usually empty whatever water is left when I’m finished. It doesn’t take much extra maintenance.

Chloe R. Verified buyer

★★★★★

I’ve taken it on a couple of short trips. It’s not tiny, but being cordless makes it easy enough to pack, and I didn’t have to bring a charger for a weekend away.

Justin W. Verified buyer

★★★★★

It’s become part of my routine before bed. I brush first, use the E40, rinse everything out, and I’m done.

Olivia S. Verified buyer

★★★★★

My husband and I both use it, but we prefer different pressure levels. That’s probably the feature we appreciate most.

Matthew G. Verified buyer

★★★★★

I have a crown in the back and I pay extra attention around that area. The adjustable pressure makes it easier to clean there without feeling too aggressive.

Hannah C. Verified buyer

★★★★★

I mostly use the standard tip, but I’ve tried the other attachments too. I like having options instead of needing a separate tool for everything.

Tyler E. Verified buyer

What's included with the COSLUS E40 water flosser

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Give Your Smile a Halloween Treat

$35.99 through October 31.

SHOP E40 NOW

10% off · No code needed · Automatically applied