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Amazon.com: UltiCare VetRx U-40 Pet Insulin Syringes, Comfortable and Accurate Dosing of Insulin for Pets, Compatible with Any U-40 Strength Insulin, Size: 1/2cc, 29G x ½'', with Half Unit Markings, 100 ct
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Advocate PetTest U-40 Pet Insulin Syringes Thin 31G 1/2CC, 0.5cc 5/16" for Dogs and Cats 100-Pack 0.5 cc (1/2 cc) 100 pack
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