Dear Your letter of inquiry regarding our product line has been brought to my attention and I would like to thank you for your interest in (name of firm’s products) I have enclosed a price list and data sheets which describe our full line of products that serve the (specify) industry. This should help to familiarize you with our family of products and the high quality of our equipment. If you have any further questions about (name of firm’s products) , please call us at our toll-free number , (800) 000-0000. Thank you again for your interest.