Cook® Extra Large Check-Flo – Introducers Send Enquiry Product Information Used to introduce large devices for vascular intervention. Related products Add to Enquiry Cook® Flexor Check-Flo – Introducers with high-flex dilator, AQ hydrophilic coating and radiopaque bandSend Enquiry Add to Enquiry Cook® Large Check-Flo – Introducers with radiopaque bandSend Enquiry Add to Enquiry Cook® Lunderquist DC Wire GuidesSend Enquiry Add to Enquiry Zenith Flex®Send Enquiry Add to Enquiry Zenith ThoracicSend Enquiry