Alere Toxicology Iscreen® External Controls: Urine Drug Control Kit Includes: 20mL Positive Vial & 20mL Negative Vial (Refrigerated - Expedited Shipment Required) (Ships on ice)
Checks for the validation of test performance and expected results. Designed to work with any of our urine drug screens. In both 5mL and 20mL options, the liquid solution vials are convenient for any office. Refrigeration is required.
Ordering from Keystone
- Available in packs of 10, 25, 50 or 100. Unit: Each.
- Ships from Edina, Minnesota in 1 to 3 business days. Net 30 and purchase orders for approved accounts.
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

