Rotary Lock Adapter Hose Mobile Air Conditioner

REMIXES: A few users have received my permission via message to remix the design

You can find corresponding notes in their designs.
Please be fair and ask beforehand - thank you and good luck.

COMMERCIAL LICENSE: Currently there is no license available for purchase - should you find the design online somewhere and the seller is not “Partalarm”, please report the item and write to me.

I distribute the design myself as a physical item and still offer it here for free to everyone.

This only works if everyone respects the terms of use. Thank you for your understanding.

This 150 mm (5.9") Air Conditioner Hose Twist-Lock Adapter has been developed to securely and precisely connect a flexible 150 mm exhaust hose to a twist-lock fitting. It is ideal for mobile air conditioning units, extraction systems, or ventilation systems.

Features

• Twist-Lock mechanism for a stable connection
• Compatible with flexible 150 mm hoses
• No support required during printing (revised version)
• Robust even with warm airflows

Printing Recommendations

• Recommended material: ASA (heat-resistant, dimensionally stable)
• Alternative: ABS/PETG (good strength, easier to print)
• It is best to print all parts from the same filament to maintain consistent tolerances.
• Each filament behaves differently - if the fit is too loose, I recommend printing the Flange at 99.7% on X & Y. (Leave Z at 100%)

Usage
The adapter is mounted, for example, on the wall to securely extend the exhaust hose of an air conditioning unit or an extraction system. The Twist-Lock lugs ensure a firm hold. For heavily hanging hoses, additional strain relief or fixation is recommended.

Compatible Hose

If you like the model, I would appreciate a rating with a picture!

EDIT May 29, 2026: Air grille / protective grille added. Protection against your pets crawling out of the open hole and also against anything large crawling in. It is suitable for mounting on the other side of the board.

EDIT: June 02 - I have uploaded the raw model file so that you can adapt the adapter to your size yourself. Prototype - grateful for feedback! 70mm - 150mm - please auto-align it in the slicer.

Measure the inner diameter of your hose and set +1mm tolerance in the tool. After that, you can attach the hose to the adapter using a hose clamp.

ENGLISH:

REMIXES:
A small number of users have received my permission via direct message to remix this design.

You will find a note in their designs indicating that permission was granted.

Please be fair and ask for permission first. Thank you, and good luck with your projects!

COMMERCIAL LICENSE:
There is currently no commercial license available for this design. If you find it being sold online by anyone other than Partalarm, please report the listing and let me know.

I sell this design myself as a physical product while continuing to offer the digital design here free of charge for everyone.

This is only possible if everyone respects these terms. Thank you for your understanding.

This 150 mm (5.9") Air Conditioner Hose Twist-Lock Adapter is designed to securely connect a flexible 150 mm exhaust hose to a twist-lock fitting. It is ideal for portable air conditioners, dust extraction systems, and ventilation applications.

Features

• Twist-lock mechanism for a secure and reliable connection
• Compatible with standard 150 mm flexible hoses
• No support material required (updated version)
• Durable and stable, even with warm exhaust airflow

Printing Recommendations

Recommended material:

• ASA (heat-resistant and dimensionally stable)

Alternatives:

• ABS or PETG (good strength and easier to print)

For the best fit, print all parts using the same filament type to ensure consistent tolerances.

Every filament behaves slightly differently. If the twist-lock fit is too loose, I recommend printing the flange at 99.7% in the X and Y axes while keeping the Z axis at 100%.

Usage

The adapter can be mounted to a wall or panel to securely extend the exhaust hose of a portable air conditioner or dust extraction system. The twist-lock tabs provide a firm connection.

If the hose is particularly heavy or hangs freely, additional support or strain relief is recommended.

If you like this model, I'd really appreciate a rating and a photo of your print!

Update – May 29, 2026

A ventilation/protective grille has been added.

It helps prevent pets from crawling through the open vent while also keeping larger objects or animals from entering. It is designed to be mounted on the opposite side of the wall or panel.

Update – June 2, 2026

I've uploaded the raw source model so you can customize the adapter to your own hose size.

Prototype version – I'd really appreciate your feedback!

The included model can be adjusted from 70 mm to 150 mm. Please remember to use your slicer's Auto-Orient function before printing.

Measure the inner diameter of your hose and set the tool to +1 mm tolerance. Once printed, you can secure the hose to the adapter using a standard hose clamp.