3M Clean-Trace Water Positive Control is designed to enhance
hygiene monitoring procedures by providing cost effective assurance that 3M
hygiene monitoring reagents and instruments are being used and stored
correctly to ensure reliable results.
Please select Next Day Air on checkout to prevent any delay with your order processing. The Positive Controls have to remain cool during transportation. We can only
ship them Next Day Air to prevent spoilage. Additionally, we only ship them
Monday through Thursday, so the parcel does not spoil while held up for the
weekend. Thank you