"MPF provides the best viewport option for our somewhat unique application. The differentially pumped Cleartran viewport has performed perfectly for us. I have recommended their product to many labs around the world.
MPF have developed products for us that have improved our analytic capability. For example, a large, non-standard sapphire viewport and custom modifications to catalog items to fit our application.
Production time and costs for custom items has always been very reasonable.
Technical support has always been prompt and productive. Several times, a team of MPF engineers has responded to questions and concerns. MPF have also contributed ideas to the design of some of our vacuum equipment."