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Everything included with the Miele Triflex HX3 Aqua: electrobrush, AquaTwister, AquaPads, cleaning solution, wall mount and tools.
Miele Triflex HX3 Aqua shown in three modes: AquaTwister mop, stick vacuum with electrobrush, and handheld with crevice tool.
Miele Triflex HX3 Aqua cordless stick vacuum in Obsidian Black with the MultiFloor XXL electrobrush attached.
Video demonstrating wet mode on the Miele Triflex HX3 Aqua, using the AquaTwister attachment to mop a hard floor.
Miele AquaTwister wet-cleaning dried dirt from light wood flooring and a spill from dark tile.
Close-up of the Miele AquaTwister wet-cleaning attachment with its two rotating microfiber pads and water tank.
Side profile of the Miele Triflex HX3 Aqua cordless stick vacuum in Obsidian Black, showing the dust container and battery.
Miele AquaTwister wet-cleaning a dark hardwood floor, its SpotLight illumination revealing the cleaned path.
Miele Triflex HX3 Aqua standing free in a living room without a wall bracket, thanks to its park position.
Miele Triflex HX3 Aqua vacuuming spilled potting soil from a wood floor, with a close-up of its handle controls.
Video showing how to assemble the Miele Triflex HX3 Aqua cordless stick vacuum, model 12878500.
20% off

Miele Triflex HX3 Aqua Cordless Stick Vacuum – Obsidian Black

By Miele
$839.20 $1,049.00
Shipping calculated at checkout.

Pickup available at Geek Vacuums Saratoga

Usually ready in 24 hours
Features That Make Everyday Cleaning Easier

One machine, two jobs

Vacuum the room dry, then swap the floorhead for the AquaTwister and mop the hard floors. No second appliance, no second charger, no second thing to store.

It adjusts so you don't have to

FloorDetect senses whether you are on carpet or a hard floor and changes suction as you cross the room, so you are not stopping to press anything.

You can see what you are cleaning

BrilliantLight LEDs on the electrobrush throw light across the floor ahead of you, and the AquaTwister adds a 360-degree SpotLight ring that shows up film and dried-on marks.

Three shapes for three jobs

The patented 3-in-1 design reconfigures in seconds: Comfort for open floors, Reach for getting under furniture, and Compact as a handheld for stairs, upholstery and the car.

Park it anywhere, mid-clean

The Triflex stands up on its own without a wall bracket, so you can set it down to move a chair or answer the door and pick up where you left off.

Empty it without wearing it

Twist2open lets you open the dust container directly over the bin, so the contents drop out with almost no dust escaping back at you.
Description

Engineered in Germany, the Triflex HX3 Aqua handles both jobs with one machine: dry vacuuming with the MultiFloor XXL electrobrush, and wet mopping with the included AquaTwister attachment. Its Digital Efficiency Motor delivers over 99.99% dust pickup, and clicking on the AquaTwister turns the same body into a mop for water-resistant hard floors — one battery, one charge, one machine.

Key Features

  • AquaTwister wet-cleaning attachment — dual rotating pads fed by a removable 10 fl oz (300 ml) water tank, with 3 adjustable water levels and 360° Brilliant Light illumination to lift dried-on dirt from hard floors
  • Up to 70 minutes of runtime with the removable VARTA lithium-ion battery — 38 minutes on the low setting with the MultiFloor XXL electrobrush running, or 15 minutes on high
  • Over 99.99% dust pickup for a thorough, hygienic deep clean
  • Patented 3-in-1 design — Comfort, Reach, and Compact modes for any cleaning task
  • HEPA lifetime filter (99.999% filtration) — ideal for allergy and asthma sufferers
  • FloorDetect technology automatically adjusts suction power for carpet vs. hard floors
  • BrilliantLight LED headlights on the electrobrush reveal hidden dust and debris
  • Boost Mode for fast, high-power cleaning of heavily soiled areas
  • Twist2open dust container empties hygienically with almost zero dust contact
  • Free-standing park position with the electrobrush attached — no wall bracket needed for quick breaks
  • Note: dry vacuuming and wet mopping are separate jobs — swap floorheads between the two rather than doing both at once, and never draw liquid into the dry-vacuum system. The Triflex does not stand on its own with the AquaTwister attached; use the included storage tray between uses.

What's Included

  • MultiFloor XXL SEB 436 electrobrush with BrilliantLight
  • AquaTwister wet-cleaning attachment
  • 2 AquaPads + 17 fl oz (500 ml) Miele FloorClean universal cleaning solution + AquaTwister storage tray
  • HX-DB dusting brush
  • XL HX-UN upholstery nozzle
  • HX-CN crevice nozzle
  • Wall mount
  • Power supply unit

Specifications

Weight 8 lbs (3.6 kg)
Dimensions 51⅛" H x 10¼" W x 11" D
Battery 25.2V Li-ion, 2500 mAh (single battery)
Charging time 240 minutes (~4 hrs)
Dust container 0.5 L (0.02 cu ft)
Noise level 74 dB
Cleaning area Up to ~1,720 sq ft (160 m²) per charge, dry vacuuming
Model 12878500
EAN 4002516922582

Download the full Miele Triflex HX3 Aqua spec sheet (PDF, model 12878500)

Good to know

The Aqua is the only model in the series that does not include the HX-AH accessory holder — it can be added separately if you want one.

If you want the softer nylon-roller Hardfloor Care Tool for delicate hardwood, or dual-battery swap-and-go runtime for a larger home, take a look at the Triflex HX3 Plus Aqua — the same core platform with an expanded accessory package.

Backed by Miele's manufacturer warranty. Questions before you buy? Our team at Geek Vacuums is happy to help you choose the right setup for your home.
Specs

Model: 12878500 (Triflex HX3 Aqua)
Product Type Code: SWDL0
Previous Material Number: 41WDL035USA
EAN: 4002516922582
Color: Obsidian Black
Vacuum Type: Cordless stick, bagless
Dry/Wet Cleaning: Both (separate passes)
Dust Pickup: Over 99.99% (IEC 62885-4:2024)
Filtration: HEPA lifetime filter, 99.999% (IEC 62885-4:2020 / EN 1822-1:2019)
Filter System: ComfortClean
Motor: Digital Efficiency Motor with Vortex Technology
Suction Control: 3 electronic power levels with display, plus Boost Mode
Battery: 25.2V lithium-ion, 2,500 mAh (VARTA, removable)
Runtime, PowerUnit only (low): 70 minutes
Runtime with electrobrush (low): 38 minutes
Runtime with electrobrush (high): 15 minutes
Charging Time: 240 minutes (approx. 4 hours)
Cleaning Area: Up to 160 m2 (dry) per charge
Dust Container Capacity: 0.5 L (0.02 cu ft)
Weight: 8 lbs (3.6 kg)
Dimensions: 51-1/8 in H x 10-1/4 in W x 11 in D
Noise Level: 74 dB
Patent: DE 10 2016 105 475 B4
Made in: Germany

Included Floorheads:
MultiFloor XXL SEB 436 electrobrush with BrilliantLight
AquaTwister wet-cleaning attachment

Standard Accessories:
2 AquaPads
500 ml universal cleaning solution
AquaTwister storage tray
HX-DB dusting brush
XL HX-UN upholstery nozzle
HX-CN crevice nozzle
Wall mount
Power supply unit
Note: cleaning brush not included

Additional Features:
Patented 3-in-1 design (Comfort, Reach, Compact modes)
FloorDetect automatic suction adjustment
Boost Mode for heavily soiled areas
BrilliantLight LED headlights
360-degree SpotLight illumination on AquaTwister
3 adjustable water levels
Twist2open hygienic dust container
Free-standing park position
EMPTY DOM REMOVE PROTECTOR
FAQ's

Can the Triflex HX3 Aqua vacuum and mop at the same time?

No — dry vacuuming and wet cleaning are separate passes. You swap the MultiFloor XXL electrobrush for the AquaTwister attachment depending on the job, and you should never draw liquid into the dry-vacuum system.

How long does the battery last on a single charge?

Miele rates the PowerUnit at up to 70 minutes on its own at the lowest setting. With the MultiFloor XXL electrobrush attached, expect 38 minutes on the low setting and 15 minutes on high. The 25.2V lithium-ion battery is removable and takes 240 minutes, about 4 hours, to fully recharge.

What floors can I use the AquaTwister on?

Water-resistant hard floors such as sealed tile, stone, laminate and vinyl. The dual rotating pads have three adjustable water levels, so you can dial back moisture on more sensitive surfaces. It is not intended for unsealed wood or for carpet.

Is the Triflex HX3 Aqua good for allergy sufferers?

Yes. It captures over 99.99% of dust and uses a HEPA lifetime filter rated at 99.999% filtration under EN 1822-1:2019, so fine particles stay in the machine instead of blowing back into the room. The Twist2open dust container also empties with almost no dust contact.

Does it work on carpet?

Yes. The MultiFloor XXL SEB 436 electrobrush handles both carpet and hard floors, and FloorDetect automatically adjusts suction as you move between them. Boost Mode is available for heavily soiled areas.

How is the Triflex HX3 Aqua different from the Triflex HX3 Plus Aqua?

They share the same core machine. The Plus Aqua adds the softer nylon-roller Hardfloor Care Tool for delicate hardwood and a second battery for swap-and-go runtime, which matters in larger homes. If you clean a single floor and want wet cleaning included, the HX3 Aqua is the value pick.

Does it stand up on its own?

Yes. The Triflex parks free-standing without a wall bracket, so you can set it down mid-clean. A wall mount is also included in the box if you would rather store it mounted.
View details
Three machines in one

What the Triflex HX3 does

This is the Triflex the line is built on. Same motor, same HEPA Lifetime Filter and the same 3-in-1 body as every other HX3 — the straightforward kit, without the extra floorheads. If you want Miele suction in a cordless stick and nothing in the box you won't use, this is the one.

Up to 70 min
Runtime
1,720 sq ft
Per charge, approx.
8 lbs
Weight
99.999%
HEPA filtration
Miele Triflex HX3 in Brilliant White shown in Comfort, Reach and handheld modes.
Three ways to hold it

One machine for floors, ceilings and the car

The motor unit unclips and moves. Down at the bottom in Comfort mode the weight sits near the floor, which is where you want it for everyday vacuuming. Up at the top in Reach mode the wand goes under the bed, behind the couch and into ceiling corners without you holding the heavy end overhead. Pull the wand off altogether and the motor unit is a handheld for stairs, upholstery and the inside of the car.

  • Comfort mode keeps the weight down at floor level
  • Reach mode moves the motor to the top for under and above furniture
  • Handheld mode with dusting brush, XL upholstery nozzle and crevice tool
  • Stands up on its own between rooms, so no wall bracket is needed
Woman vacuuming a hard floor in a bright living room with the Miele Triflex HX3 in Brilliant White.
Dry vacuuming

Miele suction, and a filter you never replace

The MultiFloor XXL electrobrush reads the floor underneath it. FloorDetect steps the brush roller up when you move onto carpet and eases it off on hard floors, so you are not stopping to change a setting every time the flooring changes. And what the vacuum picks up stays inside it: the HEPA Lifetime Filter holds 99.999% of exhaust particles and is not sold as a replacement part, because it does not need to be.

  • MultiFloor XXL SEB 431 electrobrush
  • FloorDetect adjusts between carpet and hard floors on its own
  • HEPA Lifetime Filter, 99.999% exhaust filtration, nothing to buy again
  • 0.5-quart bin releases and empties without putting your hand in the dust
Everything included with the Miele Triflex HX3 in Brilliant White.
In the box

Everything you need, nothing you don't

A wall bracket and charger, the accessory holder, and the three hand tools that cover the rest of the house. The Triflex also parks upright on its own, so if you would rather not drill into a wall, you don't have to.

  • MultiFloor XXL electrobrush
  • Dusting brush, XL upholstery nozzle and crevice nozzle
  • Accessory holder HX-AH, wall mount and charger
  • Parks upright on its own — wall mounting is optional

Runtime is Miele's rating for the motor unit at the lowest power setting. With the powered floorhead attached, expect 38 minutes on low and 15 on high.

Full spec comparison

Every model, side by side

All six Triflex HX3 models share the same motor, HEPA lifetime filtration, 0.5-quart bin, FloorDetect, Boost Mode and 3-in-1 body. What separates them is which floorheads and tools come in the box, and whether you get a second battery.

Swipe sideways to compare every model →
Model Triflex HX3 AquaTriflex HX3 Aqua $1,049 You're viewing this HX3 Plus AquaHX3 Plus Aqua $1,249 Explore HX3 PlusHX3 Plus $1,099 Explore HX3 Cat & DogHX3 Cat & Dog $999 Explore HX3 HardfloorHX3 Hardfloor $949 Explore Triflex HX3Triflex HX3 $849 Explore
What it is for
Best forVacuum and mop hard floors Vacuum and mop, whole house Big homes, dry vacuuming Homes with pets Mostly wood and tile Everyday dry vacuuming
ColorObsidian Black Obsidian Black Titanium Pearlfinish Obsidian Black Casa Grey Brilliant White
Floorheads included
ElectrobrushMultiFloor XXL SEB 436
with BrilliantLight		MultiFloor XXL SEB 436
with BrilliantLight		MultiFloor XXL SEB 436
with BrilliantLight		MultiFloor XXL SEB 436
with BrilliantLight		MultiFloor XXL SEB 436
with BrilliantLight		MultiFloor XXL SEB 431
no headlight
AquaTwister wet floorhead✓ ✓ — — — —
Hardfloor Care Tool soft roller— ✓ ✓ — ✓ —
Electro Compact pet brush HX-EC 10— — — ✓ — —
Batteries
Batteries included1 2 2 1 1 1
Runtime — motor unit onlyUp to 70 min Up to 140 min Up to 140 min Up to 70 min Up to 70 min Up to 70 min
Runtime — powered floorhead Low / High38 / 15 min 76 / 30 min 76 / 30 min 38 / 15 min 38 / 15 min 38 / 15 min
Cleaning area per charge~1,720 sq ft ~3,440 sq ft ~3,440 sq ft ~1,720 sq ft ~1,720 sq ft ~1,720 sq ft
Also in the box
Dust brush, XL upholstery and crevice nozzle✓✓✓✓✓✓
Accessory holder HX-AH— ✓ ✓ ✓ ✓ ✓
Wall mount and power supply✓✓✓✓✓✓
AquaPads2 pads 2 pads — — — —
FloorClean solution17 fl oz 17 fl oz — — — —
AquaTwister storage tray✓ ✓ — — — —
Wet cleaning and convenience
AquaTwister water levels3 + Boost 3 + Boost — — — —
Self-standingWith Electrobrush With Electrobrush Yes Yes Yes Yes

Runtimes are Miele's ratings at the lowest power setting. Dust pickup is over 99.99%; HEPA exhaust air filtration is 99.999%.

Not sure which vacuum is best for your home?  We’re happy to help!

Chat with a real Vacuum Geek — 
we’ll help you choose the right model
and let you know the best price.

Not sure which vacuum is right?
We’re happy to help!

Chat with a real Vacuum Geek — 
we’ll help you choose the right model
and let you know the best price.