Cook® Large Check-Flo – Introducers with radiopaque band Product Information Used to introduce balloon, closed and non-tapered end catheters and other devices for intervention. Related products Add to cart Cook® Aurous Centimetre Sizing Catheter $0.00 Add to cart Cook® Beacon Tip Van Schie Seeking Catheters and Van Schie Over-The-Top Catheters $0.00 Add to cart Cook® Endovascular Dilator Set $0.00 Add to cart Zenith Flex® $0.00 Add to cart Zenith® Fenestrated $0.00