This three-part AEG ChillFlex Pro 12000 dual-hose intake adapter lets the condenser draw air through a second outside hose instead of pulling cooled air from the room. We hold the exact print-ready file, include the M3 assembly hardware, and post the finished kit tracked across the UK.
Original design by Paul Busby on Printables, licensed under GNU GPL v3.0. Hark Tech is the independent print service, not the designer or manufacturer. AEG and ChillFlex are trademarks of their respective owner; this is not an official AEG part.
A single hose blows your cooled indoor air outside. That air has to be replaced, so warm outdoor air is pulled in through gaps around doors and windows. You are cooling air just to throw it away.
Because warm air keeps leaking back in, the unit runs longer to hold the same temperature. On the hottest days, when you need it most, a single-hose unit can struggle to keep up.
A second hose feeds the condenser with outdoor air instead of room air, so the room stays sealed and cools faster. It is the same principle used by higher-end portable units that ship dual-hose from the factory.
Check the complete model code on the rating label before ordering. Confirmed AEG models and related Electrolux models are separated below so a shared casing is never presented as a guaranteed fit.
| Portable air conditioner | Compatibility evidence | Status |
|---|---|---|
| AEG ChillFlex Pro AXP34U338CW 12,000 BTU / 12K model |
The original adapter was designed and assembled for this exact model by Paul Busby. | Designer fit |
| AEG ChillFlex Pro AXP34U339CW 12,000 BTU / 12K model |
Hark Tech printed this exact three-part file for a customer, who confirmed after delivery that it fits. | Customer confirmed |
| Electrolux EXP34U338CW ChillFlex Pro, non-connected model |
Electrolux’s genuine-parts catalogue lists the same rear panel and lower rear grille used across the related AXP/EXP casing family. The intake geometry should be compared from a photo before ordering. | May fit · photo check |
| Electrolux EXP34U339CW / EXP34U339HW Comfort 600 connected / heat-pump variants |
These models use the related 34-series shell; published differences are primarily controls and internal features. Physical fit is not yet claimed without checking the rear grille and fixing points. | May fit · photo check |
For any “may fit” model: send the full rating-label model and a straight-on rear photo. We will compare the lower grille outline and fixing points before you pay.
The supplied 3MF is the exact production file from the confirmed order. Its pieces are already positioned for Hark Tech to slice and print.
The complete intake shroud, hose port and locator set, printed from the assembled file Hark Tech has already supplied successfully.
Overall model height: approx. 295.19 mmTwo matching M3 nuts and bolts are included by Hark Tech to clamp the printed sections together. No heat-set inserts are required.
Included in the orderDesigned for AXP34U338CW. The same printed file was subsequently fitted successfully to a customer’s AXP34U339CW.
Check the full rating-label model before orderingYou supply the hose: the printed adapter and assembly hardware are included. You will need a suitable second portable-air-conditioner hose for the new outside-air intake.
Original design by Paul Busby on Printables, shared under GNU General Public License v3.0. Hark Tech prints the community design to order and includes the alternative nut-and-bolt assembly hardware described above.
Tougher and more temperature resistant than PLA. Our default choice for an appliance part that may sit beside a warm unit or sunny window.
The most heat and UV resistant option. Pick this if the unit sits in a conservatory or strong direct sunlight.
Polycarbonate is the strongest, most heat tolerant material we print. More than this part strictly needs, but it will not blink at the exhaust side.
The lowest-cost option, and the designer successfully tested the adapter in PLA. Keep it away from strong direct sun and sustained heat.
Prices are for the complete printed kit and update live. Postage is £5.55 Royal Mail Tracked 48, free on orders over £40, and the delivered total is shown before you pay.
A single-hose portable air conditioner pulls air from inside the room to cool its condenser, then blows that air outside. That creates negative pressure indoors, so warm unconditioned air gets sucked back in through gaps around doors and windows. A dual-hose setup gives the condenser its own outdoor air supply, so it does not depressurise the room. The result is faster, more efficient cooling, especially on hot days.
You receive the complete three-part printed adapter plus two M3 nuts and bolts for assembly. No heat-set inserts are needed. You supply one suitable portable-air-conditioner hose for the new intake. If you are unsure which hose to buy, message us before ordering.
We recommend PETG for its balance of toughness, temperature resistance and price. The designer successfully printed and tested the adapter in PLA, so PLA is a valid budget option for a shaded room. Choose ASA if the unit sits in strong direct sun.
You do not need to upload anything, we already hold the print-ready files. Open the kit page, pick your material and colour, and check out. Postage is £5.55 Royal Mail Tracked 48, free on orders over £40. We print it to order and post it from Basingstoke, usually within a few working days.
The designer made it for AXP34U338CW. Hark Tech then printed this exact three-part file for an AXP34U339CW customer, who confirmed that it fits. Related Electrolux EXP34U338CW, EXP34U339CW and EXP34U339HW models may use the same rear geometry, but are not yet guaranteed. Send the rating-label code and a straight-on rear photo before ordering.
Check the rating label on the back or side of the portable air conditioner. Use the complete code, such as AXP34U338CW or AXP34U339CW, because similar-looking ChillFlex models can use different intake fittings.
Complete three-part adapter from £34.50, with two M3 nuts and bolts included. PETG recommended. Printed to order in Basingstoke and posted tracked across the UK; the live delivered total is shown before you pay.
