They have samples of that case.
http://www.polycase.com/article/plastic ... ample.html
"Thank you for your interest in POLYCASE® enclosures. We are happy to send electronic engineers a sample of one of our enclosures*; please call a customer service representative at 1-800-481-1493 from 8:00 AM to 5:00 PM EST, Monday to Friday with your request.
Need several sample enclosure sizes or styles? Our "no minimum purchase" policy makes it easy for you to try a variety of enclosure styles, colors, and sizes. They can be on the way to you 1, 2, 3!
1. Browse our site. You can shop by size (mm or inches) or by application.
2. Select just the right electronics enclosures to fit your application, and
3. Place your secure order and they'll be on their way to you in most cases, the same or very next day.
*Please note our standard sample policy is not applicable to WA Series, WC Series or WP Series NEMA enclosures. Ask our Customer Service Reps for further details."