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U-40 Insulin Syringe 29 G x 1/2" 1 CC (ML) allows up to 40 units of insulin per injection. Whole unit markings on syringe.
U-40 Insulin Syringe 29 G x 1/2" 1/2 CC (ML) allows up to 20 units of insulin per injection. Whole unit markings on syringe.