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Contact Us

We're listening.

As a responsive and service-oriented manufacturer, we look forward to helping you in any way we can. Here’s how you can reach us.


We'd love to hear from you with any questions or feedback on our products. Call us at 262.268.4747. A Milk Check specialist is on duty Monday through Friday from 8 am to 5 pm Central to answer any questions you may have. If calling after hours, feel free to leave message and someone will contact you on the next business day.


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Kleen Test Products Corporation
1611 Sunset Road
Port Washington, WI  53074

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