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We are closed for the winter. Place your order now to be the first in line when we reopen production in April 2027.
We are closed for the winter. Place your order now to be the first in line when we reopen production in April 2027.

Portable AC Window Kit Accessories & Replacement Parts

  • Midea Duo Bug Screens

    $38.00 - $38.00
    $38.00
    $38.00 - $38.00
    $38.00

    We spent way too much time (and money) engineering these things. As a result, they're exceptional. Without screens, bugs will enter your room throu...

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  • Quick Connect Hose Adapter

    $10.00 - $10.00
    $10.00
    $10.00 - $10.00
    $10.00

    *Do NOT buy one of these for your own DIY project* *These are ONLY for customers who have purchased an acrylic window vent kit* This is our own pro...

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  • Access Doors for Push Out Windows

    $35.00 - $35.00
    $35.00
    $35.00 - $35.00
    $35.00

    These Access Doors are an optional add-on to your push out window. Watch the videos to determine if this solution is right for you or not. **We can...

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Martinson Manufacturing designs and produces precision window inserts for portable air conditioners. Built for non-standard windows, each insert is made to exact dimensions and engineered to fit cleanly, install easily, and perform reliably in real homes.

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Our Promise

Every insert we build is
designed to fit your window exactly, install cleanly, and work the way it should. If it doesn’t fit right, we’ll remake it. No workarounds, no damage, no guesswork, just a solution that performs reliably in your home. Every time.

Contact

Martinson Manufacturing
705 Schoenhaar Dr #101
West Bend, WI 53090
262-340-1418
info@martinsonmanufacturing.com
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