Cores/core charges:

Most of our items are sold on an exchange basis; that is, we require your old part in exchange for the ordered part you will be receiving from us. This assures that this item can continue to be available.

Core charges are in addition to the listed price of the part, and will be added to your bill.

  1. Cores must be returned in rebuildable condition, be complete and intact with no missing pieces, and include all parts such as the unit shipped to you to be eligible for a refund. Units missing parts may not be eligible for a refund.
  2. Cores should be clean and drained of any fluids.
  3. Cores returned to us must be shipped prepaid, no C.O.D.ís accepted.
  4. Core charges will be refunded in the same manner in which they were paid.
  5. Cores must be returned within 30 days of receipt of your order. Cores returned after 30 days may not be refunded.
  6. Core returns must include the core return packing slip that was sent to you with your order (without it we will not know who to issue the refund to!)


If you wish, you may send your core to us in advance of your order being shipped (be sure to enclose contact information). Orders accompanied by receipt of your core in advance will not be charged the core charge.


All cores should be shipped to:

ZTherapy Inc.
4427 Roselawn Dr. NE
Salem, OR 97305  USA