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Amazon.com : Seresto Large Dog Vet-Recommended Flea & Tick Treatment & Prevention Collar for Dogs Over 18 lbs. | 8 Months : Pet Flea And Tick Collars : Pet Supplies
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Amazon.com : Bayer Animal Health Seresto Flea & Tick Collar for Cats, All Weights & Sizes, 8 Month Protection (3 Pack), Gray : Pet Supplies
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