“TETRA”, “INSTA-COLD”, “INSTA-HOT”, “HOT ’R COLD”, “EYZE BAG” and our “4” logo are registered trademarks of TETRA Medical Supply Corp.

VELCRO® is a registered trademark of Velcro Industries B.V.

You may place orders by phone to (847) 547-0590 or 800-621-4041 Monday through Friday from 7:30 A.M. to 4:30 P.M.  After hour calls will be answered by a recorder.  Orders placed by voice mail will be filled on the next business day.  Our fax machine is available 24 hours a day.  The FAX number is (847) 647-9034.

We accept MasterCard, Visa, Discover and American Express at time of sale for your convenience.

Payment terms by check or electronic funds transfers are net 30 days, F.O.B. TETRA Medical Supply with approved credit or to established accounts.  A late charge of 1.5% per month on the unpaid balance will be added to overdue accounts.

Minimum billing amount will be $25.00.

Prices are subject to change without notice.

Most orders are filled the same day but please allow 3 weeks for delivery on all items marked “special order”.

We strive to increase our product line with quality items and improve our current products.  With this in mind we reserve the right to change, modify, add or discontinue products without prior notification.  We will do our best to inform customers using these products in advance but accept no responsibility for not doing so.


If you wish to order one or more of our products for evaluation you will be billed at a discounted sample price.  If the sample is not satisfactory, and it has not been used or worn, you may return it prepaid to us within 30 days and your account will be credited in full.  Please let us know when your order is for evaluation to avoid confusion.

After 30 days, products purchased for evaluation may not be returned for refund.


In accordance with our desire to provide the finest quality and service we will promptly, at no cost to the customer, accept the following for return:

1.      Products which may be defective.

2.      The results of shipping errors on our part.

3.      Products purchased for the first time on a trial basis.

ALL returns must have prior written authorization from TETRA Medical Supply.  For item returns resulting from customer error, the items must be returned prepaid and must be in a resalable condition.  Returns within 30 days are subject to a ten (10) percent restocking charge.  Returns after 30 days are subject to twenty-five (25) percent restocking charge.  We will not accept any returns after 90 days. 

Sterile products will not be accepted for return.




6364 West Gross Point Road   Niles, Illinois   60714        1-800-621-4041

©2019 TETRA Medical Supply Corp. All Rights Reserved.