Home > Customer Service Crest Customer Service We try to make it easy for you to get help or ask a question. Please use the customer service option that best suits your needs below. Request a price quote Contact us to gather your information and we will return a price quote promptly. Request parts or repair Contact us for equipment maintenance, repair, or parts. Request SDS Download the Chem-Crest® Safety Data Sheets you need now Document downloads Download the latest manuals, product literature, and forms from the Crest Ultrasonics PDF & Word library. Contact headquarters Reach us by phone, fax, and email contact form. Contact area rep Our sales representative stand ready in the U.S., Canada, Mexico, and overseas.