Thank you for your question. Although Delta Faucet model # 612-C has been discontinued, you still should be able to order and purchase parts from your local retailer or wholesaler. Included here is the maintenance and installation booklet which also includes on page 2 the parts breakdown.
http://www.deltafaucet.com/customersupport/documentation/612-c.html?document=mi&documentIndex=0#flashWrapper
Answered by: Delta1
Date published: 2013-10-22