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Orders are currently leaving our facility in 3 business days | Questions? 262-340-1418
Orders are currently leaving our facility in 3 business days | Questions? 262-340-1418

Portable AC Window Kit Accessories & Replacement Parts

  • Quick Connect Hose Adapter

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

    *All window vent kits come with one of these* This is our own proprietary Quick Connect hose adapter. It threads on to the end of your ac hose and ...

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  • Sold out

    Midea Duo Bug Screens

    $34.00 - $34.00
    $34.00
    $34.00 - $34.00
    $34.00

    ***4/16/2026 WE ARE CURRENTLY NO LONGER SELLING THESE TO THE GENERAL PUBLIC. WE'RE SORRY, BUT WE ONLY HAVE ENOUGH ON HAND FOR CUSTOMERS WHO PURCHAS...

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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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