In the event it is necessary to return a product purchased from MAC-MOD Analytical, the process can be initiated by contacting us at 1-800-441-7508 or

If you are not 100% satisfied with your purchase, you may return the product for a full refund.

Returns will be accepted for up to 30 days from the date the product was received. In the event a product has been purchased through a third party supplier, that supplier must contact MAC-MOD for return authorization.

If a product is being returned because of performance issues, please contact MAC-MOD Analytical technical support at 1-800-441-7508 or We will attempt to correct the problem. If warranty replacement is justified, a return authorization number will be issued. 

If a product was ordered in error, contact us at 1-800-441-7508 or We will issue a return authorization. In the case of ordering error, product must be returned in unused condition in the original packaging. In cases where products are returned damaged, we reserve the right to charge a 20% restocking fee.