Back Fluted Drain - Kardia Spiral Redax Kardia Spiral is our specifically designed drain for cardio-thoracic surgery. Available in two size CH 19 and 24 to ensure an effective drainage. Contact us about this product Related products Flat fluted drain Flat Fluted Drain developed by Redax are characterised by an advanced fluted design that thanks to a system of multiple lumen, provide effective distribution of suction and fluid throughout the entire segment of the drain. Show product info