Return Policy No goods shall be returned without prior permission by Marus. If permission is granted for the return of the goods, the amount of credit issued, if any , will be at the sole discretion of the Marus home office in accordance with established policies. If a return for non-warranted credit is authorized, a 25% restocking fee will be charged on all catalogued items. Cabinets shall not be returned. No returns on replacement parts after 180 days from date of purchase from Marus. The customer is responsible for any freight costs. Call Customer Service to obtain a Return Authorization Number (RMA) before returning any item for credit consideration. Please provide the following information when requesting an RMA: If the part is defective and still under Warrant, the original serial number, invoice or purchase order number is required before an RMA will be issued. Please provide in detail a description of the problem i.e. No back down function on the touch pad control Threads on holder are stripped and wont stay in place Valve is leaking air at the toggle switch etc… Replacement invoice, sales order or purchase order number if available. Part number and quantity being returned. Mark the out side of the box with the RMA number issued and return to: Marus Dental International 705 S. Springbrook Road Building C Newberg, Oregon 97132 USA