Miele Triflex HX3 Aqua Wet/Dry Cordless Stick Vacuum – Obsidian Black
U.S. shipping, or pick it up in Avon.
After you buy: in-house repair and annual tune-ups at our Avon, CT shop · Repair services
A Triflex HX3 with one battery, illuminated SEB 436 floorhead and AquaTwister attachment for separate dry vacuuming and damp mopping. Read full product description
Key facts
- Floors
- Hard floors, Carpet
- Floor tools
- SEB 436 electric head + AquaTwister mop
- Dirt collection
- Bagless · Cordless
- Filter
- Miele HX-FSF-2 Fine Dust Filter · $49.00
Available to order Ships from our Avon shop or directly from the supplier.
Warranty follows the manufacturer’s current terms for this model.
Usually arrives 2–5 business days after you order (contiguous U.S.).
- Free U.S. shipping
- 30-day returns (factory-sealed)
- Pay over time with Shop Pay Installments
Description
Description
The Miele Triflex HX3 Aqua combines a configurable cordless dry vacuum with an AquaTwister mop attachment. Dry vacuuming and wet mopping are separate steps: the AquaTwister rotates damp pads with the suction motor off, and the machine does not extract spills or dirty wash water.
At a glance
| Miele material number | 12878500 |
|---|---|
| Listed assembled weight | 8 lb (3.6 kg); attachment choice affects carrying weight |
| Dust container | 0.5 L; bagless |
| Supplied filtration | HEPA lifetime |
| Battery | 25.2 V, 2,500 mAh removable lithium-ion; one supplied |
| Power controls | LO / EC / HI plus short Boost mode |
| Charging time | Approximately 240 minutes (4 hours) per battery |
| Supplied floorhead | MultiFloor XXL SEB 436 with BrilliantLight |
Included tools and storage
- PowerUnit, Comfort handle, suction wand, one battery and power supply.
- MultiFloor XXL SEB 436 with BrilliantLight electrobrush.
- HX-DB dust brush, HX-UN upholstery nozzle and HX-CN crevice nozzle.
- AquaTwister mop attachment, two AquaPads, 500 mL universal cleaning agent and storage tray.
- Wall mount.
How the three configurations work
With the PowerUnit low on the wand, the floorhead carries more of the motor unit’s weight. With it at the top, the lower assembly can reach farther under furniture. Remove the long wand for compact handheld work. The self-standing pause position is for the PowerUnit-at-bottom configuration on a level surface; it should not be used with the motor unit high on the wand.
Press the power button to start at EC, then select LO or HI if needed. Boost supplies a short 10-second increase, followed by a 5-second cooling interval before it can be selected again. Floor detection adjusts the electrobrush’s power to the floor and roller; it is separate from your selected suction level.
Use the powered floorhead on surfaces approved for rotating brushing, and the small tools for furniture, baseboards and gaps. Check delicate rug and floor care instructions before choosing a roller and power level.
Runtime and charging in context
Miele’s per-battery maxima are up to 70 minutes on low with the PowerUnit alone, 38 minutes on low with an electrical accessory, and 15 minutes on high with an electrical accessory. These are different test configurations. Floor resistance, power level, filter condition and battery age affect usable time.
The battery can be charged on or off the vacuum, using the supplied charger and suitable mount position. For initial activation, the manual requires the battery to be in the PowerUnit for its first charge. Use the charge indicator to plan the next session. A second battery is a separate accessory.
Using the AquaTwister
Vacuum loose debris first, then switch off and attach the AquaTwister with both pads fitted evenly. Select moisture level 0 for no added liquid, 1 for light moistening or 2 for heavier moistening. In mop mode the Boost button provides a 30-second wetting period. Only mop sealed hard floors whose care instructions permit damp cleaning.
Fill and dose the removable tank as directed in the AquaTwister manual; do not put cleaning liquid into the dust container. Empty and clean the water tank after use, wash the pads according to their care labels and use the supplied tray for storage. The dry-vacuum runtime figures above are not a tested mopping-time claim.
Emptying, filters and roller care
Run the ComfortClean filter-cleaning rotation before opening the bin, then empty before the MAX mark. For a deeper clean, remove the filters before washing the detached dust container with mild dish soap and water, and dry the container fully before reassembly. The fine-dust filter and prefilter must stay dry; do not rinse or scrub the fine-dust filter.
The replaceable fine-dust filter is HX-FSF-2. The manual calls for a thorough dry filter clean at least every three months and replacement of the fine-dust filter after approximately three years. “Lifetime” in the supplied exhaust-filter name does not remove this separate fine-filter maintenance. Switch off and detach a powered brush before removing hair from its roller or cleaning the head.
Service and replacement parts
Use the Miele battery and charger specified for the exact model; the HX3 manual identifies the HX-LA 10 replacement battery family. Keep the purchase receipt and the supplied limited-warranty terms for service. Avon Vacuums can help identify the correct parts and warranty support for this HX3 package. Contact Avon or call (860) 678-0011.
- Need a delivery or pickup date? Call (860) 678-0011 before ordering.
- Free shipping to any U.S. address.
- 30-day returns on factory-sealed, unused vacuums; buyer pays return shipping. Return details
Shipping, returns & purchase details
Available to order Ships from our Avon shop or directly from the supplier.
- Need a delivery or pickup date? Call (860) 678-0011 before ordering.
- Free shipping to any U.S. address.
- Most orders ship within 1 business day and arrive in 2–5 business days. Select items may ship directly from a manufacturer; we’ll contact you if timing changes.
- 30-day returns on factory-sealed, unused vacuums; buyer pays return shipping. Return details
Why Buy From Avon Vacuums
Why Buy From Avon Vacuums
Family-owned in Avon, CT since 1972. Avon Vacuums is an authorized Miele & SEBO dealer with an in-house repair bench at 12 West Main Street.
- SEBO: eligible household machines get SEBO’s Warranty Bonus (10 years motor, 10 years non-wear parts, 7 years labor) when registered with Avon’s dealer code. SEBO vacuums bought from third-party marketplace sellers don’t qualify.
- Miele: Miele’s US limited warranty for the exact series applies, for example 3 years on Guard M1 and L1 canisters. Ask us for any model’s term before you order.
- After the sale: genuine bags, filters and parts, plus repair at our shop. Call (860) 678-0011.
Parts, Bags & Accessories
Parts, Bags & Accessories
We carry genuine OEM bags, filters and accessories for brands including Miele, SEBO and VacuMaid, plus clearly labeled aftermarket options such as Clean Obsessed. Match the model and part number before ordering, or call (860) 678-0011 for compatibility help.
Care & Maintenance
Care & Maintenance
Routine care can help extend a vacuum’s useful life. Replace bags before they're full, change filters according to the manufacturer schedule, and check the brushroll for tangled hair and debris monthly. We offer in-house service and repair for eligible machines. Call or use the repair check-in before visiting so we can confirm repair eligibility and the current drop-off process. Ask about any diagnostic charge before leaving the machine.
Shipping & Store Pickup
Shipping & Store Pickup
- Free shipping on U.S. orders of $75 or more. Vacuums, bags, filters, parts and accessories all count toward the same order total, including central vacuum power units and Alaska, Hawaii, Puerto Rico, territory and military addresses.
- Orders under $75: shipping is calculated at checkout from the packed weight and your address (USPS or UPS ground), before you pay.
- Most orders ship within 1 business day and arrive in 2–5 business days; some items ship from the manufacturer, and we contact you if timing changes. Free pickup in Avon, CT for eligible orders.
- Returns: within 30 days of delivery; vacuums only if factory sealed and unopened. Return policy · Shipping policy
U.S. shipping, or pick it up in Avon.
Check fit before ordering
Complete Your Setup
Related supplies and optional accessories. Check each item's model compatibility, pack contents, and care instructions before ordering.
Make it a matched care combo
One retail pack of each item below, selected for this model.
-
Miele HX-FSF-2 Fine Dust Filter
$49.00
-
Miele AquaPads HX-APU Replacement Pads for AquaTwister – 4 Pack
$29.99
Separate dry-vacuum filter and replacement AquaTwister pads for the supplied wet-cleaning attachment. Cleaner is a separate optional purchase; pads are not a filter.
Items are added separately at their current prices. Everything in your cart counts toward free U.S. shipping at $75+. Tax and shipping are calculated at checkout.Bags, Filters & Maintenance
Tools & Attachments
Payment & Security
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Compare vacuum cleaners
Compare complete HX3 Aqua packages that include AquaTwister. Dry vacuuming precedes mopping; no wet debris extraction.




















