90° Window Vent Adapter for Portable AC

This is a custom-designed 90-degree elbow adapter for the Siguro AC-C140W portable air conditioner. It is specifically engineered to solve the common issue of short manufacturer exhaust hoses and the difficulty of installing them into European-style tilt-and-turn windows.

By angling the exhaust at 90 degrees, the hose can be routed directly into a tilted window frame without awkward bends or the need for the bulky, less aesthetic window sealing kits provided by manufacturers.

Key Features

• Space-Saving Design: The 90° bend allows the AC unit to sit closer to the wall/window.
• Easy Installation: Simplifies setup for tilted windows without complex fabric seals.
• Optimized Airflow: Designed to fit the original hose connector securely.
• Pressure Balanced: While slightly less efficient than a fully sealed window, this solution avoids creating a heavy vacuum in the room, making it easier to handle for everyday use.

Files Included

• Complete Adapter: The full 90-degree printed model.
• Flange.step: I have included a separate STEP file of the mounting flange. You can use this to test the fit with your specific hose connector before printing the whole model, or use it as a base to design your own custom extensions.

Highly recommended to use PETG or ASA/ABS. Standard PLA may soften due to the hot exhaust air (often reaching 50°C+).