Seresto Collar posted: Tue May 05 11:21:49 EDT 2015 by: Tammy Tags: "Clinic Specials" "News" Seresto is an easy to use, 8 month collar for flea and tick prevention.Buy a Seresto Collar and receive $15 back by mail.Buy both Seresto collar AND at least 6 doses of Advantage Multi and receive $55 back by mail!