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Amazon.com : Vet's Best Flea and Tick Repellent Collar for Dogs - Flea and Tick Prevention for Dogs - Plant-Based Ingredients - Small to Large Dog Flea Collar - Up to 20”
Amazon.com : Flea and Tick Collar for Dogs, Flea and Tick Prevention for Dog, 27 Inch, 16 Month Protection, 2 Pack : Pet Supplies
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Seresto for Small Dogs 8-Month Flea and Tick Prevention Collar | Meijer