Masterflex® is now part of Avantor® — See press release >
All we ask is that you request a Return Authorization (RA) by phone (1-800-MASTERFLEX); or email (firstname.lastname@example.org) to get instructions on how to return your item to us. Outside the US, please contact your local office. We'll ask for your reference number (found on the packing slip or invoice) and the reason for the return.
In order to protect our employees who are receiving the returned product, a safety form (decontamination request) may be required for some returns. Our Customer Service Team will let you know if this applies to your return.
We understand that sometimes mistakes are made and orders need to be cancelled or postponed. When that is the case, please call us immediately. Note that some restrictions may apply on cancelling orders for certain products (see restricted products listed above).
See our full Terms and Conditions
All returns for credit must be in new condition, include original outer packaging, all software (if applicable), inner packing materials, and other accessories.
We reserve the right to refuse a return or to charge a restocking fee for damaged, incomplete, or otherwise non-conforming returns. In addition, there may be some restrictions on certain products being returned, such as: