Store Policies

Free Ground Shipping Details

  • Free Ground shipping on orders over $100
  • Offer valid in the contiguous U.S. Only.
  • Does not include Saturday delivery.
  • Offer not retroactive on prior purchases.
  • Limited time offer

Exceptions: Due to dimension and weight limitations assessed by UPS, orders made with an extraordinary amount of weight or large dimensions may be subject to a freight charge. A large quantity of weight kits, for example, may require a freight charge. Please call (800) 634-4077 or contact us if you think you may be placing an order that could incur a shipping charge. We will confirm if your order does need a freight charge and can supply you with a shipping cost for your purchase at that time. If you are wanting your items shipped outside of the contiguous U.S. please call.

Back Ordered Items

After your initial shipment of in stock items are sent, all remaining back ordered items are shipped free of charge. If all items are out of stock when you submit your order, you are responsible for the initial shipping charge. If we receive a portion of the order we will ship those items at the original cost of shipping and the remaining back ordered items will ship at no cost to you.

The method of shipping will depend on the best option available. Back ordered items will ship either First Class Mail or UPS Ground. If you would like your back ordered items to be sent out using a specific shipping method you will need to contact us at 1-800-634-4077. You will be charged for the cost of shipping your back ordered items if any other method is chosen. Typically, back ordered items, if not sent out the same day, will go out the following day. Travel time will depend on your location within the continental US. Please be advised, unless otherwise notified all back ordered items will be sent via First Class Mail or UPS Ground.

Back ordered items will ship out once they are in stock.

Made to Ordered Items

At Mercury Displacement Industries Inc (MDI) most of our items are made to order in our Michigan facility. We ask for 3-5 business days after receiving your order to complete production. If there are longer lead times than this it will be communicated with you efficiently.

Made to Order items will ship out once the entire order is complete. Partial orders will not be shipped unless communicated with MDI.

Returns and Exchanges

In the event that you would like to exchange or return an item please refer to return form here. MDI does not accept used items for return or exchange. Please use the original packaging your items come to you in to send back to MDI. If you have a question that your invoice does not address please call and speak with a customer service representative who will give you return information specific to the product you are returning.

Returns and Warranties Return Items To:
Mercury Displacement Industries
Attn: Returns Department
25028 U.S. 12 East
Edwardsburg, Michigan, 49112

All customers will be responsible for shipping charges on returned product.

There is a 25% restocking fee on all Made to Order items returned to MDI.

There is a 12.5% restocking fee on all other items.

***Please make sure to record your tracking number.***
Please use our Returns & Exchange form. You can download it here.

Warranty Policy

  • 1 year warranty on all MDI manufactured items
  • 90 day warranty on all resale items

Privacy Policy

Although Mercury Displacement Industries (MDI) provides certain encryption in an effort to protect the electronic transmission of credit card numbers or social security numbers (Financial Information) that you submit to through the Site, MDI does not guarantee the security of any information transmitted to or from the Site. You understand and agree to assume the security risk for any information you provide using the Site.

Other than the Financial Information, you agree not to send any confidential or proprietary information to MDI through the Site. Except for the Financial Information or personally identifiable information relative to you, any information you do send to MDI through the Site will be deemed NOT to be confidential (Non-Confidential Information). For any Non-Confidential Information you do send, post or submit you hereby grant MDI an unrestricted, royalty-free, irrevocable license to use, reproduce, display, perform, modify, transmit and distribute the Non-Confidential Information, and agree that MDI is free to use any ideas, concepts, know-how or techniques that you send MDI for any purpose whatsoever without compensation to you or any other person sending the Non-Confidential Information, and you represent and warrant that you own or otherwise control all of the rights to the Non-Confidential Information and that public posting and use of your content by MDI will not infringe or violate the rights of any third party. Your personally identifiable information you submit to us shall be treated in accordance with our Privacy Statement.

You are prohibited from posting or transmitting to or from the Site any unlawful, threatening, libelous, defamatory, obscene, scandalous, inflammatory, pornographic, or profane material, or any other material that could give rise to any civil or criminal liability under the law.

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