Skip to content
Orders are currently leaving our facility in 5-7 days
Orders are currently leaving our facility in 5-7 days

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 ...

    View full details

  • Midea Duo Bug Screens

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

    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...

    View full details

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.

Quick Links

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
© 2026 Martinson Manufacturing. All rights reserved.
Web Design Company