Home Dealnews Seresto Dog and Cat Flea & Tick Collars at Petco: Buy 2,... Dealnews Seresto Dog and Cat Flea & Tick Collars at Petco: Buy 2, get an extra 10% off + free shipping w/ $35 By ARCOM - 21 May 2021 59 0 SHARE Facebook Twitter Go to the deal page: Seresto Dog and Cat Flea & Tick Collars at Petco: Buy 2, get an extra 10% off + free shipping w/ $35