Help Us Update Our Records! Duff Co. is in the process of upgrading to a new database. Please provide us with any changes to your contact information by filling out the form below. Please Verify Your Information Company* Main Office Phone No.*Billing ContactFirst Name Last Name Email (for Statements and Invoices)* Phone (if different from Main No.)Authorized PurchasersContact OneFirst Name Last Name Email Cell PhoneContact TwoFirst Name Last Name Email Cell PhoneAdditional Purchasers? Provide their info below.Additional PurchasersCAPTCHACommentsThis field is for validation purposes and should be left unchanged. Δ Subscribe to our newsletter for new products, discounts, and educational opportunities! * indicates required Email Address * First Name Last Name